DallasMakerspace

9:30 PM

SCIENCE

Omg that is so cool o.o

http://www.sciencemag.org/news/2017/01/diamond-vise-turns-hydrogen-metal-potentially-ending-80-year-quest

http://www.cell.com/cell/fulltext/S0092-8674(17)30344-6 !!!

11:55 AM

(science)

http://yann.lecun.com/exdb/publis/pdf/lecun-98b.pdf

7:21 PM

optimizing gradient descent for neural networks!

1

9:28 AM

Happy Easter

The New E. Coli Peeps!

1

http://randomwalker.info/publications/language-bias.pdf wow. some good sciencing here. (edited)

Mrs_Angemi has the best Instagram

Agreed! It's surprising what she pulls out of cadavers

https://arbital.com/p/bayes_rule/?l=1zq Bayes' theorem explained with all sorts of bells and whistles! loved this...

Bayes' rule

Bayes' rule is the core theorem of probability theory saying how to revise our beliefs when we make a new observation.

9:47 AM

FYI I am totally cool with this chat being s science meme dump for the space

9:47 AM

same, but also dump neat sciency things, too! https://www.newscientist.com/article/2107414-budgies-reveal-the-rule-that-means-birds-never-collide-in-flight/

Budgies reveal the rule that means birds never collide in flight | New Scientist

Birds have a trick for avoiding head-on collisions – now we know what it is, we could teach autonomous drones to do the same

2:08 PM

(bc I'd def love to read them)

Wonder how the startgazing went last night ..

Wasn't it too cloudy?

@Limey (MReynolds) ?

It cleared at sundown and was wonderful. And then I fell asleep and dreamed of freezing at the side of a mountain in the howling wind. But then @Limey (MReynolds) fried 2 pounds of bacon over an open flame and we all lived! (edited)

2:52 PM

Plus, my husband insisted we stop at Lakewood Brewing. So no. No annual meeting for me.

Yus, it was a chilly but nice evening of stars, meteors and UFOs. Pretty sure I was abducted by aliens at one point.

That was all the cobbler you ate, man. Sugar does crazy things...

https://talk.dallasmakerspace.org/t/free-granite-available/20602

Free Granite Available

Would DMS be interested in some free granite? Remodel of kitchen has left me with some large pieces of finished / polished granite. One piece is about 5' x 5' with all finished edges. It would make a good work surface. Others are various sizes. Granite is black - called Uba Tuba. I need help moving it if DMS wants it. Location is McKinney. If not desired by DMS, anyone can have it. Otherwise I might make really expensive gravel...

@Ashley_Newland i added you as @science chair you now have permission to post in the #committee_chairs room as well

ty so much pearce

Ye. Keep the science memes flowing

Yes please

12:59 AM

9d46c852cc9f1169.4618

31.08 KB

1:01 AM

Omg I shared that same one earlier>.<

1:01 AM

Finals started today and my brain is mush

1:01 AM

1:03 AM

Woop woop http://www.sciencedirect.com/science/article/pii/S1525001617301107

I am very interested in the GE classes but my limited vision will mean that I wil have to have help in doing a lot of itn Should I sign up anyway?

Yes

Will do that now, thanks,

Does the weather station have a camera feed? If not, how hard would it be to add on?

I don't think it has a camera feed

2:19 PM

That would be a question for Ebony if you see her around the space

FYI Ebony is no longer a member

What!? Oh no

7:18 PM

Explains why she handed off the weather project

She is starting a new job with Verizon this week. She deserves a break and to focus on work.

1

The Weather Station is open source, and Ebony had been actively encouraging members to volunteer to work on it... Here is just one post to that effect. There are others in that thread and other threads... https://talk.dallasmakerspace.org/t/web-developer-for-dms-weather/18391/38?u=lisaselk

Web Developer for DMS Weather

Like I said before, it's an open source project. Anybody can do a project to upgrade the station, the station isnt my project. It comes down to this, I asked who wanted to join the project to PM me. I got one guy. Everybody else who hasn't, has been giving suggestions on what they want to see done and they've been noted. If people want to add more features after we're done or join us in doing the work then great, otherwise whoever is doing the project will end up doing what they are willing to...

No way, she deserves to hang around with her friends - I guess she has to work, sadly

5:27 PM

will miss her, she's good people

She chose work over us?

https://talk.dallasmakerspace.org/t/science-committee-meeting-on-5-25/21786

Science Committee Meeting on 5/25

I know its super last minute, but we are having a meeting this Thursday at 8p in the purple classroom. Come, let your voice be heard, and I'll probably bake cookies. See y'all then!

Hey yall, While I was at maker faire this past weekend I spoke with Eric Harness from BioCurious (http://biocurious.org/).

11:18 AM

He said he has access to equipment that other labs have and are getting rid of.

11:19 AM

He has sent it to different makerspaces as far as Orlando.

11:19 AM

I was planning on speakin with Mr. Melnick about equipment he needs for his classes

11:21 AM

Eric from BC did bring up some conncerns though. Has anyone checked the equipment we have for radiation?

1

11:21 AM

apparently that is a thing we should be looking for when purchasing used equipment.

So THAT's what caused this extraneous third nipple to grow

theres plenty of people with gieger counters at the space now

:o I'm not sure if we have...I'm going to be at the space tonight. If anyone with a Geiger counter wants to meet me we can check.

2:27 PM

1

$40 raised for Science via the pie to the face bidding at the picnic!

1

Really? XD who got pied in the face?

Alex did it for you guys. But Robert won in a bidding war with Nick and decided to just make Alex and Nick pie each other. I'll try to post the video later.

6:35 PM

For my science and Steven Universe peeps: Steve Blanchard is playing with Bismouth

Hello everyone I'm new to the maker community. I'm really excited to see we have a science page

by any chance do we need another microscopy set and a distillation apparatus? I have them just sitting in my house, but I could leave them at the makerspace if anyone wants to use them

@Ashley_Newland is the chair, she may know someone! also, give talk.dallasmakerspace.org a try, if you haven't already!

Sounds good thank you

also do you all think I have to wait till Thursday before I can go into the building? I paid last Wednesday but wasn't able to go to the open house

you need a badge to get in, but if you contact Stan or someone with the privilege to make them, you should be home free as long as y'all can work something out

8:15 PM

you might be able to open an issue on Talk. it's the workhorse of DMS's online communication!

Thank you so much!!! I really appreciate the help how would I get in contact with him is talk an app?

I made a shortcut to the website into an icon on my home screen... its mobile version is decent, imo! https://talk.dallasmakerspace.org/c/issues-requests

Issues & Requests

The "Issues & Requests" category our replacement for the old ticket system that we are no longer using. This is where you should report any issues with our tools and various resources. This is also where you make requests for supplies (such as: hand soap, paper towels, pens, markers, copy paper, etc...) for our community, and to request access to various resources at Dallas Makerspace.

8:32 PM

give that link a try, and be sure to read the guidelines! I think you could try #infrastructure chat as well if anyone's online

8:35 PM

I'm not officiated to help or anything, so continue to ask around!

Thank you so much! Goodness you all are so helpful. I owe you lunch

thank you so much again. I wanted to head to the makerspace now but I'll just wait until everything cleared, let me know whenever your around

dude, sweet

@albertm001#5239 Welcome! I will have to look through our glassware to see if we are set up for distillation. As far as microscopes go, we have a few, but they aren't in working order at the moment. I would love to see what you have though. I will be at the space tomorrow evening if you would like to be let in and get a badge. I try to keep an eye on this channel, but if you want to reach me directly, you can email me at ashley.newland20@gmail.com and my talk handle is Ashley_Newland I look forward to meeting you!!

12:02 AM

Thank you @slunchery

12:03 AM

@albertm001

12:03 AM

I don't know how to discord, lol.

@albertm001 Come by the space most evenings and either David K or I will be available to get you an RFID. You can even do it yourself once you get someone to let you in the building.

Thank you so much @S. Kjhsdgf#5351 @Ashley_Newland @StanSimmons I can't wait to meet you all, I'll head over after my physicians appointment. Thank you all so much for all your help I can't wait to meet you all and become a part of something as amazing as this!

@Ashley_Newland >tiger comic, I hear agar agar is quite tasty https://www.bakefresh.com.sg/assets/TsumTsum_Sliced_Scaled.jpg

the sybr safe really adds dimension to the flavor

@Denzuko.sdf.org is that...agar??

6:13 PM

please tell me we can make art agar

yes one can

okay so this is happening

6:14 PM

i don't know when...or how...but it's happening

6:14 PM

i've been thinking of things to demo during thursday nights

lol.. and it's vegetarian friendly

6:15 PM

http://www.bbc.co.uk/food/agar-agar

1

@Ashley_Newland correct me if I'm wrong but you where talking about https://www.amazon.com/Kegco-KC-FP-CB-06-Carboy-gallon/dp/B00JWYRGU2/ref=pd_cart_qp_2_5?_encoding=UTF8&psc=1&refRID=H5ZP7HM3XAAWDHS1VBV4?

@Denzuko.sdf.org yes! i believe so

Goodmorning everyone

I'll be at the space mostly all day. I'm loaning my orgo glasswear distillation kit to the space and a microbio tech grade microscopy set . Is there anything around here that needs upkeep or anything I can do for community service? id really like to help in anyway I can. Also is there a designated sink I can clean some of the old glassware in?

8:52 AM

Also I have fairly recent textbooks and lab manuals from ochem, biochem, microbio, gen chem, and bioinformatics I've taken/helped teach; if you all think it'd be good to keep around for reference

Ty so much for your contribution!! To clean the glassware I have been using the sink in the galley and we have an autoclave behind the biosafety hood. As far as reference books, I like the idea but the last time we had a bookshelf it wasn't really kept up and became a dumping ground for older underused textbooks. Down the line we might get one but I want to make the area more organized beforehand.

No worries I'm just glad to help and thank you for letting me know. I have the simple distillation set up with just water right now. We may not be able to do much with the distillation apparatus since we have a carbon filter, but I'm pretty sure we can use it for aromatic oils and chemicals that aren't as hazardous

5:43 PM

Hi everyone in Science. My name's Joshua, I do optical sciences and Engineering. Just letting everyone know that I submitted the first of many classes that will talk about Materials Sciences just now. This series will cover Types of Bonds, Crystalline Structures, Semiconductors, Polymers, Electrochemistry, and build into the next series I'll teach about Optical Sciences. The course is free for everyone to attend and all are invited to attend. The first class will be the 26th from 1:30 to 2:30 pm. Otherwise if you have any problems concerning lasers, lenses, mirrors, and light in any way shape or form I'm just a PM away. (edited)

10:50 PM

2

dude, great! I've been lookig forward to more in depth science classes at DMS

http://www.cell.com/cell/fulltext/S0092-8674(17)30634-7?_returnURL=http%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0092867417306347%3Fshowall%3Dtrue

2:10 PM

@S. Kjhsdgf have you seen this?

2:10 PM

@S. Kjhsdgf#5351

2:11 PM

i have no idea how to use discord -_-

oh boy I understand 0 of "Leading- and lagging-strand polymerases function autonomously within a replisome"

lolololol they are talking about DNA replication

2:13 PM

DNA polymerase is the enzyme that "makes" new DNA. When you take the double helix DNA molecule, another enzyme (helicase) unwinds the helix so you have 2 template strands: the leading and lagging strand. Each strand has its own polymerase to synthesize a new whole DNA molecule

Wait so you start with one strand, it replicates to two strands with each their own ability to replicate more times ?

yes. http://www.sciencealert.com/dna-replication-has-been-filmed-for-the-first-time-and-it-s-stranger-than-we-thought

DNA Replication Has Been Filmed For The First Time, And It's Not What We Expected

"It undermines a great deal of what's in the textbooks."

2:17 PM

here's a summary of that paper

Getting flashbacks to highschool reading this haha

2:18 PM

But this new footage reveals that there's no coordination at play here at all - somehow, each strand acts independently of the other, and still results in a perfect match each time.

DNA replication, transcription, and translation are so interesting. its a miracle we are all alive.

I haven't! it's amazing to me how people are able to identify the polymerase subunits and their functions! I was reading the intro and was hoping there was a bideo to show off the ~~sporadic movements~~ (edited)

4:18 PM

def gonna keep reading, good link!

Check the second link I sent, they have a video

yaya

4:28 PM

hopes fulfilled

btw if anyone likes or is interested in neural networks http://neuralnetworksanddeeplearning.com is a nice read!

(uses basic linear algebra, partial derivatives, python)

https://m.youtube.com/watch?v=AxxnziuL408

Numberphile

The Shape of DNA - Numberphile

5:21 PM

So I just went through and cleaned all of what I determined to be usable optics. My only question now is... Where can I put them?

@Ashley_Newland

Are those from the box underneath the metal table?

5:22 PM

I know absolutely nothing about optics.

need shelving, storage?

We have some microscopes that were donated to us from UT. I know they need new light sources, but maybe see if we could replace the objectives in them?

maybe something could be built?

I'm also wondering if those were for the ramen spectrometer

nice, there are 5 videos inside of the article

5:46 PM

why do I not read Cell

These were from the box under the metal table.

5:52 PM

I haven't been able to find the optics for the ramen spectroscometer (edited)

They were probably a donation

Again, where should I put them? They can't be stacked unless in a box and I don't want to put them back in the cardboard box they came in

Where do you think we should put them

6:19 PM

As long as they are out of the way and I the science area I don't care

6:19 PM

Thank you for taking the time to clean them though ^.^

6:22 PM

Feel free to use any of the drawers to store them if you think that's the best place.

Science has a TV! Ty @StanSimmons

12:48 AM

@StanSimmons

I want 24/7 DNA replication on that tv lol

Would science ever consider doing a home herb/nutrition workshop for making stuff like magnesium soap?

Science would welcome it, but we need someone or a group of volunteers to teach the classes, see what equipment we need to facilitate that, etc.

Well I'll put it to my calendar of possibilities for October when I return. Thanks!

Hey guys...I just got to the space and the science area is a mess. It doesn't look like it was just one person so I'm pinging all of the science peeps a friendly reminder to clean up the space and put everything back in its place. Thanks!

I saw that we have a container for liquid nitrogen. Will we be getting Liquid Nitrogen any time soon?

Been here forever

9:40 PM

Doesn't have a cap as far as I know

Dang. That would have helped with an experiment to show off in my lecture series

https://www.youtube.com/watch?v=0t4aKJuKP0Q&feature=youtu.be

Miegakure

4D Toys: a box of four-dimensional toys, and how objects bounce and roll in 4D

1

http://www.biorxiv.org/content/early/2017/04/28/131532

Rapid Whole Brain Imaging Of Neural Activities In Freely Behaving Larval Zebrafish

The internal brain dynamics that links sensation and action is arguably better studied during animal's natural behaviors. Here we report novel volume imaging and 3D tracking techniques that perform whole brain imaging of neural activities in freely swimming larval zebrafish. We demonstrated the capability of our system through functional imaging of neural activities during visually evoked behavior and prey capture behavior in larval zebrafish.

7:02 PM

deeply wish I could replicate this, diy at dms

so, the gram staining class was fun and its got me wondering does that process work for yeasts and molds?

you're just testing to see if the microorganism has single- or double-layered cell membrane, right? (edited)

12:33 PM

my guess is yes

No. The gram stain only works with bacteria.

12:39 PM

The gram stain stains the bacterial cell wall which is made up of peptidoglycan in gram + and peptidoglycan and lipopolysaccharides in gram -

I was totally wrong, thanks for correcting hehe

1

neat neat stuff! http://cs231n.github.io

11:56 PM

oh! also http://journal.frontiersin.org/article/10.3389/fncom.2017.00048/full

11:56 PM

butts... no preview

11:56 PM

comp neuro stuff

https://www.youtube.com/watch?v=f8FAJXPBdOg im still uneasy about game of thrones...

acapellascience

The Molecular Shape of You (Ed Sheeran Parody) | A Capella Science

got caught up in traffic coming from the store and work. on my way for the class. sorry for the late response.

Hey science team! I am a high school science teacher at a newish highschool and we are needing a hood for our chem lab. They seem really expensive, where did we get ours? Does anyone have contacts at any of the colleges that might be willing to sell old equipment (also shopping for microscopes)? Thanks for your help. (edited)

http://www.dfa.arkansas.gov/offices/procurement/stateSurplus/Pages/default.aspx

12:08 PM

You'll have to call them, but they often have hoods and excess lab equipment

Thank you!

@Axeonos your the second one to say that today about GoT. Why did it make you feel uneasy?

Singers on game of thrones, ed shereen should not be in westeros

ah

8:03 PM

more of a casual fan so that went over my head

Science has a computer now! i5, 8GB RAM, 500GB HD, DVD-R, WiFi, Win 10 Pro. Login using your normal DMS username/password. Ebony has the the local Admin password for installing software as will Ashley.

1

wump

Got the quote back for the 3 drops, it would be $890

science has plugs now

@Brian Terry you now have the role of @science chair and @committee chair. this allows you to be tagged when needed and allows access to the #committee_chairs chat (edited)

DO NOT RESIST Pearce has Borg'ed you.

this one volunteered to be borg'ed!

HAHAHAH IM FREEEEE

... now you are

9:21 PM

i may have forgotten to update the roles

what time do i bring donations of glassware and reagants on thursday night

1:54 PM

i can't sign up to makerspace talk b/c it doesn't send verification emails

hm, i can send the person youre trying to get in contact with a message

3:33 PM

what is their username?

I put a legit copy of windows XP on the computer for whom ever asked for it. Its in the downloads folder

3:48 PM

I don't need it anymore

thanks @Kevin I've done the same for the guys and draco informed me they already had it taken care of

I’ll erase it off the whiteboard then

:+1:

Hey don't forget I started a Folding @ home team for DMS a while ago, if anyone wants to join https://stats.foldingathome.org/team/230072

That reminds me we have been doing compute for the world community grid - https://join.worldcommunitygrid.org?teamId=1WZJMC7X02

4:43 PM

would be cool to do both though

DMS now has a dedicated tensorflow and python serverless environment. Check it out at https://tensorflow.communitygrid.dallasmakerspace.org/?token=72d68548c56900f356795fa1d0bfef7e533e1b0cdce33020

1

@Denzuko.sdf.org - can you check to see if the server is down?? I can't seem to hit the env.

10:13 AM

For the dedicated tensor flow env you posted about on August 15th above

@ousooners2834 thanks yes we're aware of the issue and the root cause of the outage has a lot to do with some needed maintenance on the network. We're working to restore services. once things are back online the updated token will be posted here on talk (edited)

1

We've got it back online

1

6:51 PM

latest link: https://tensorflow.communitygrid.dallasmakerspace.org/?token=35270f72a91526179ba6a374fef2dff97ae22b0fb460ca76

6:51 PM

@ousooners2834 ^

@Denzuko.sdf.org - thanks I can bring it up now!

nothing quite like the scent of a ylang ylang

9:56 PM

haha all amines smell like rotten fish

9:58 PM

the isopentyl acetate was synthesized in an organic chem lab, right?

9:58 PM

hahaa nice

9:58 PM

did the same thing, though we never did isopropyl acetate

9:59 PM

did you need to do any purification?

10:00 PM

a p sweet at-home experiment anyhow

what does "ethereal" smell like

lmao

ah yes, the discord

mm, wonderful place, this

Is the fume hood hooked up yet?

No holes in the roof yet, so not yet. David Ratcliff and Charle Proctor are working on the plans for ventilation for science, ceramics, jewelry and glass.

x)

No holes? @StanSimmons ... are you certain? https://talk.dallasmakerspace.org/t/woodshop-roof-leak/58238

Woodshop Roof Leak

If anyone needs proof that the roof leaks during a rain event … it rained hard starting about 9:30. Watch the Woodshop East camera recording from 9:36 PM to 9:50 PM on 6/23/19.

3:49 PM

ha ha.

XDDDDDDDDDDDDDDDDDDDDDDDDDD

https://arstechnica.com/science/2019/06/capuchin-monkeys-have-a-3000-year-archaeological-record/ Archaeology - no longer just for studying humans

Capuchin monkeys have a 3,000-year archaeological record

3,000 years of discarded stone hammers reveal changes in capuchin diet and culture.

Cicadia molting on a tree on my front porch. First time I've seen this in person.

Get pics

10:33 PM

I have one where it's drying it's wings. They are blue for like 4 hours

I've got some mediocre cell phone pix

10:37 PM

It might have started to pump its wings by now

Wings are blue-green indeed

11:03 PM

11:04 PM

It's difficult to control exposure, frame the picture well, and hold a flashlight on the subject at the same time

11:35 PM

I'm still surprised at how different the nymphs look from the adults

11:36 PM

In one molt they transform from being optimized for subterranean life to being reasonably optimized for flight

11:38 PM

Tommorow morning I'll walk the dogs. The big one snaps at flying insects - especially cicadias. Wonder if she'll be taking umbrage at the subject of the photos, which I placed on the tree after it fell off a wall.

Those are awesome

agree, sweet pics

I've always wondered what process, flora/fauna, or environment would trigger such an evolution to why they would take so long to mature?

shrug maybe predators had a harder time recognizing cocoons as prey

9:48 AM

fwiw humans take a long fricken time to mature

9:52 AM

hm, quora suggests that having young feed on a different resource reduces competition between relatives

9:52 AM

the user's avatar is them in a space suit, so i can't scrutinize that

the cicadas around here are annual

12:34 PM

1 or 3 year lifecycles if I recall

12:35 PM

the 17-year broods are the weirdos

12:36 PM

I gather current thinking is that with such a long lifecycle no predator will come to depend on them as a food source, which alongside mass-emergence means the species will survive opportunistic predation

about all you need to know about Fluorine

2:51 PM

What's the news on the fume hood?

lol what do you need a fume hood for

Someone said the fume hood has to be functioning before we can do any organic synthesis

10:54 AM

Like making esters for fragrances (edited)

https://arstechnica.com/science/2019/09/aloof-not-so-much-study-finds-cats-bond-with-their-owners-just-like-dogs A study that's sure to generate controversy

Will you still need me, will you still feed me: Yes, your cat bond...

"Cats display social flexibility in regard to their attachments with humans."

interesting use of tax dollars...

lmao

I'm sure Ralston-Purina managed to benefit somehow

When are we gonna be done temporarily taking care of the tarantulas

I think they're dead so.......

Ugh why

they made the ultimate sacrifice

7:21 PM

we do seem to have a penchant for stuffing living things into little boxes and then ignoring them til they're dead....

Giving a tour. Guests were repulsed by the spiders.

7:23 PM

You have to walk really close to them to get to personal storage

cant tell much from the pics... except there are several habitats

7:24 PM

were they just creeped out because "ew spiders", or "holy moly, they're all dead spiders"

Disgusted by big a** spiders so close to a common area

oh. Meh.I should probably be less blase about that, but... c'mon. It's in a cage, and...tarantulas aren't actually dangerous...

Am looking at them now. 7 cages. Pretty sure some are alive. I won't rap on the boxes.

They do tend to molt so it can be deceiving at first glance.

and some funny people like to place the discarded exoskeletons outside their enclosures

But honestly, I think it's time to rehome them. Give them back to the owner or Kris.

5:17 PM

I dont have a problem with them except that we a) dont allow other pets in the space and b) they freak some people out.

And c) (which should be "a") it's personal storage and inurement. Our rules do not permit personal storage outside of designated areas. And providing pet boarding services free of charge for two years is an abuse of authority.

A couple months ago I saw an interesting paper on using AAV to deliver DNA that codes for lactase production in humans suffering lactose intolerance. I've wanted to try my hand at making a few test batches at DMS, but is that even in the realm of possibility? And who would I talk to about it?

This is the paper that started the initial idea. https://sci-hub.tw/10.1038/2625

Sci-Hub: устраняя преграды на пути расп...

Первый в мире пиратский ресурс, который открыл массовый доступ к десяткам миллионов научных статей

10:52 PM

And I've secured a method of obtaining both AAV and the pAAV-Lac Plasmid

10:53 PM

currently working on a source for live adenovirus dl309

Re the spiders: we had fish for 3-4 years in Science. A few people protested. They even kept a death chart of expired fish. But the project was about building a self sustaining eco.

2:08 AM

Spiders do freak out some people. And enchant many others. I doubt we have lost members because of it, nor scared away members for the curious creatures.

2:12 AM

Speaking of bugs and science, something to ponder: https://www.theguardian.com/environment/2019/nov/13/insect-apocalypse-poses-risk-to-all-life-on-earth-conservationists-warn

‘Insect apocalypse’ poses risk to all life on Earth, conservat...

Report claims 400,000 insect species face extinction amid heavy use of pesticides

I avoid that area because of the spiders.

1

mmmm

10:08 AM

spider snacks

Why's it got to be ~~snakes~~spiders

I avoid it because science isn't real!

11:39 AM

That's my opinion

@ABowlOfDesolateWaste lactase enzyme DNA hack ? Wow. I wonder whether a bunch of lactose intolerant people have epigenetic blocks or compromised gut flora, and how AAV delivered DNA mod would interact with that

My current collection of fragrant organic compounds

12:14 AM

methyl salicylate. Sweet root beer, mint lifesavers, mint mouthwash, wintergreen isopropyl salicylate: green vegetable floral lime sour herbal 1-pentanol: jolly ranchers, sweet oily buttery yeasty bready fusel (my favorite)

12:15 AM

I am waiting for a fractional distillation column so I can isolate methyl acetate

just made isopentyl acetate, smells GOOOOD x)

11:45 PM

a hearty thumbs up to this

6:28 AM

glad to see some dang #science occurring at dms

Dont know why there's not more organic chemistry going on, either

4:06 AM

also i made those esters at home, not at DMS x)

4:06 AM

but i might start teaching a methyl salicylate (wintergreen oil) class in the science section

1

One of my goals next year is to learn how to make essential oils, etc. After the big move to Hawkins.

fragrance oils (artificial scent compounds) are more fun x) (edited)

10:48 PM

I’m into the natural essences for magical oils.

‍♀️

LOL

xD

just made pentyl acetate

4:31 AM

Smells quite different from isopentyl acetate. more generic fruity ester smell, less banana (edited)

4:31 AM

most esters can be described as "sweet and fruity" but really they have their subtle dfiference that u can only experience for yourself

do you feel like dms has the equipment to carry out these kinds of synthesis reactions?

8:38 AM

haven't been in a while, but i'd be interested in replicating some of the experiments from university to test myself and the facilities

@slunchery It seems that the science section is currently more geared towards biology, not chemsitry

12:31 AM

They have the basics, but nothing advanced. no hempel columns, 3-neck flasks, addition funnels

12:31 AM

i am actually collecting organic synthesis equipmenta t home, i have a part time job just to fund the hobby

12:31 AM

i do end up bringing a lot of my own stuff when i go to DMS (edited)

12:32 AM

For just fischer esterification, DMS has everything you need, except for a distillation thermometer (edited)

hey @jupiter849 if you would like us to get more chemistry equipment teaching classes and/or leading a project in science committee are good ways to get that. We just have a limited pool of funds and have to use what we have wisely, teaching classes helps us build our funds and thus have more to spend on equipment.

Hey guys, is there any details one can look up about the atomic reactor project?

https://dallasmakerspace.org/wiki/Fusor

Fusor

11:09 PM

you can also come hang around 2:30pm on sundays too. There are people working on it at other times too but its more random

11:09 PM

we also have a binder of scientific journals and other things that we are using as a reference

2

@fairiecyanide

@fairiecyanide @fairiecyanide this might be your refrigerated shipment

That had been on the back table for days. Wasn't marked perishable

‍♂️ let me know if it has to be taken out of the fridge

thank you. based off of the size i think those are the unicorn bags. the mushroom spawn is set to arrive thursday. I will have to check with kobin to see if he was able to change the address. The mushroom spawn won't be cold but will need to go in the fridge for long term storage. Short term is fine at room temperature, but that is if you are planning to use it in a couple weeks. Longer term needs to be the fridge

1:36 AM

i appreciate you caring

1:42 AM

9405510202079030318465 USPS

1:42 AM

9405510202079030317260

4:14 AM

your collection you made or purchased?

"out for delivery" the address change didn't seem to take.

If you let someone in the D&O know, they can retrieve it

package arrived and was put in refrigeration

3:57 PM

is what I was told this afternoon

1

refrigeration? that's pretty cool

1

patrick got it. i am happy now

@ferricyanide made them at home. I purchase the carboxylic acids and alcohols online

Anyone watch NileRed?

Yea x)

I don't know alot about chemistry but for some reason I love his channel .. I feel like I'm absorbing something .. plus it is entertaining

2:00 AM

That and of course Codyslab

Learned more botany in one day than all of college. And what the shit! https://www.youtube.com/watch?v=82siQVfeJPs

Crime Pays But Botany Doesn't

"Real Gneiss" with a Plant Called Crucifixion Thorn

1

room begins to spin

a natural enemy of the locust

lulz

"...Prof. William Lyon Phelps has very effectively captured the secret of felinity when he says that the cat does not merely lie down, but “pours his body out on the floor like a glass of water”. What other creature has thus merged the aestheticism of mechanics and hydraulics?" - H.P.Lovecraft in "Cats and Dogs"

perpetual-ish motion

8:01 AM

cats only live for so long, but at a sooner point in time the buttered side of the toast won't be buttered any more

Just need a way to reapply butter in motion and the cat can feed off the toast

mid-air rebuttering

Works for jets

8:08 AM

Spray butter!

Butter jet pack

butter is a hydrocarbon of a sort...

except for the non hydrocarbon parts, yeah

google news - keeping it real - real absolute (edited)

1

weather for the layman

https://youtu.be/U-RBtbs_Ktg

Imagination Station Toledo

Hydrogen Oxygen Detonation

I wonder if we could ignite it with a laser

We will not be providing death ray fuel to laser.

1

4:45 PM

Though it is probably ignitable if you have at least 4% hydrogen

i could go for a bubble bath after that one

Oh y'all are no fun

что вы говорите очень грустно

This yury?

What good is science if we can't get death ray fuel?

нет

5:21 PM

that's mad science

5:22 PM

down the hall

Silly me

You just need to come to our pyro events

I do enjoy some fire related activites

5:52 PM

Red one is a consumer shell

10 and 16 inch. Nice

5:56 PM

You know your shells. And salutes.

I've only ever set off the big single-load tubes. Made some of my own black-powder flash pans and sparkler bombs, but nothing quite so nice and large as those

Keep October 16-17 open

I shall!

primus would be happy to hear this

Science committee meeting online now meet.google.com/gpi-gvxe-wdz

awesome https://arstechnica.com/science/2020/09/first-modular-nuclear-reactor-design-certified-in-the-us/

NuScale’s small nuclear reactor is first to get US safety approval

Small size can help with economics and safety.

8:31 AM

a couple decades of talk about SMRs and one has finally been approved. if these prove successful, it could break through what is the single biggest obstacle for nuclear - the staggering cost of construction.

how does this compare in physical size to, say, a nuclear submarine...um...power unit, or whatever they call them...My extremely limited knowledge of them (that they exist, largely, is where it ends) suggest this is not dissimilar, and about 10% of the size in production capability (50MW vs the subs' "up to" 500MW), but I can't find a thing about the physical dimensions, or so, of a sub unit...

Shorter but wider? https://www.quora.com/How-big-is-a-nuclear-submarine-s-reactor-dimensions-Are-you-able-to-be-in-the-same-room

1

submarines also tend to use the reactor's steam plant to spin the propeller shaft directly

2:58 PM

thus the rated output will not necessarily be the useful power output (although it's a very good approximation)

1

kinda like turbines for airliners vs. helicopter? They're just used differently...

mostly the issue of conversion losses in any potentially connected generator

also, I want to say last time I looked at military reactors they were rated in thermal output rather than shaft output

is there an incantation associated with this process?

1

It’s like the house at has taken a cue from the giant StaPuf Marshmallow Man from Ghostbusters.

handy reference

7:50 PM

LOL I think the line that separates hot from cold on MY shower is even narrower...

good news: I got a new water heater a couple weeks ago and it's awesome - unlimited hot water bad news: I had to pay for a new water heater a couple weeks ago

indeed

8:41 PM

been there

8:41 PM

done that

8:41 PM

got the skinny wallet to prove it

8:41 PM

but endless hot water DOES rock!

40 gal >> 50gal and many many more BTUs

and we have had ALL hot water consumers on at once, nary a glitch (edited)

its predecessor was 28 years old

impressive!

8:42 PM

anything >16 is bragging rights!

Tank or Tankless?

mine's tankless

8:55 PM

love getting to use the floor space under it, too!

My water heater is in a closet in the garage. Price of tankless has really come down. Now about 2x the price instead of 4-5x.

8:59 PM

You squeezed every frigging penny out of that 28 year old heater.

I got a plurality of the years on the original water heater (edited)

I'm worried at 15 years on a 10 year warrantied heater.

walk that snake!yeahhhh

an interesting tool to game-ify exposure risks w/ COVID-19 https://www.microcovid.org/

microCOVID Project

A calculator for building intuition about COVID risk. We used published research to estimate the risk level of various activities in microCOVIDs. 1 microCOVID is a one-in-a-million chance of getting COVID. We hope you'll use this tool to make safer choices.

surprising how much of a difference that a better mask makes

5:51 PM

of course fitted N95 respirators are rare as hen's teeth nowadays

5:52 PM

wonder if anyone stocks P100 dust filters for the 3M half-face respirators again

Found them on Amazon again

7:06 PM

Not bad price, but not the best. I managed to pick up some more p100s, and theres a filter template on thingiverse that fits the 3m half mask nicely

7:06 PM

So you can filter the exhaust

a surgical mask looped over the filters to cover the exhaust would be about an order of magnitude more consideration for others than cloth masks and sloppily-worn surgical masks the general public is sporting

True, but I hold myself to higher standards, for better or worse

which if my experience with relentlessly-fogged glasses shows, leak relentlessly around the edges

9:02 PM

thus much of the pearl-clutching over exhaust vents should be directed at all mask design

9:03 PM

this is what I've been sporting for ~6 months now

9:03 PM

KN95 filter media + surgical mask over those dreaded exhaust valves

3

Math is hard!

I don't need it anytime soon, just daydreaming about future projects. I am making a YouTube channel that shows simple organic chemistry reactions, like making esters

I would like to use thionyl chloride one day to make a video on making long chain alkyl chlorides, such as octyl chloride. But its impossible to get as an amateur, could i donate to the science committee so you can order it from a supplier?

3:52 PM

Or do you think it's too dangerous to use?

sigma aldritch has it

7:35 PM

doesn't appear to be hard to get

7:36 PM

we don't have a working fume hood though so likely the space wouldn't be the place to work on it

7:37 PM

that and it being water reactive

7:37 PM

looks like nasty shit

It's only impossible to get as a home chemist hobbyist.

9:04 PM

Phosphorus trichloride is an alternative (edited)

dms hardly qualifies as a lab

,

4:28 AM

when doing home organic chemistry i do everything outdiirs with a big heavy duty fan

1

lol epic

best possible characterization of fictional peoples is now possible

Anyone from science available to meet a contractor tomorrow to help get an estimate for your ventilation?

https://www.youtube.com/watch?v=gV9FytfoCtg

OpenFlexure

The OpenFlexure Microscope

That^ looks awesome. Might have to add that to the list of projects to start and finish sometime.

shelve*

randomly excited about the solar eclipses in October 2023 and April 2024

I was really trying to find the connection between solar eclipses and the rat. It has been one of those weeks...haha

let me know if you do find a connection

I'm super excited for those. I wasn't able to take advantage of the 2017 one due to teacher training. But I'm no longer doing that and I will schedule those days off years in advance!

Watched the 2017 eclipse in my front yard. A large percentage of the randos about seemed to take no notice despite the fact that it got dusk dark in the middle of a cloudless day and birds started to roost.

Our entire shop said $@#! it and went out back in the alley to watch

12:38 PM

Found the photo I took

12:39 PM

Pinholes in matboard plus reversed binoculars for the big one

I made a special trip to Kentucky and camped out in the center of totality. Totally worth it. Especially since it was at a distillery.

1

So is Dallas in the full eclipse path for the next upcoming one?

Should be. Not sure where it is exactly, I haven't checked the maps

12:42 PM

So greatest eclipse will be mexico. So, the closer you can go SW, the better.

12:43 PM

https://en.wikipedia.org/wiki/Solar_eclipse_of_April_8,_2024#/media/File:SE2024Apr08T.png

Solar eclipse of April 8, 2024

A total solar eclipse will take place at the Moon's ascending node of the orbit on April 8, 2024, visible across North America and dubbed the Great North American Eclipse (also Great American Total Solar Eclipse and Great American Eclipse) by some of the media. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscu...

2024 will be good almost anywhere in DFW, but the southern metro will be along the 'centerline'

12:57 PM

2023 you're going to want to be in south Texas

12:59 PM

or scenic Midland-Odessa

Some decent maps here: https://www.greatamericaneclipse.com/april-8-2024

2024 Apr 8 — Total solar eclipse of April 8, 2024

About the April 8 2024 total solar eclipse spanning Mexico, the United States, and Canada

1

https://www.cnbc.com/2021/04/14/covid-vaccine-moderna-hopes-to-have-booster-shot-ready-by-the-fall-says-ceo.html?__source=iosappshare%7Ccom.apple.UIKit.activity.CopyToPasteboard

Moderna hopes to have Covid booster shot for its vaccine ready by t...

Moderna CEO Stephane Bancel told CNBC the biotech firm hopes to have a booster shot for its Covid vaccine to protect against variants ready by the fall.

5:33 PM

https://www.cnbc.com/2021/04/11/covid-variant-from-south-africa-was-able-to-break-through-pfizer-vaccine-in-israeli-study.html

Covid variant from South Africa was able to ‘break through’ Pfizer ...

The coronavirus variant first discovered in South Africa is able to evade some of the protection of the Pfizer-BioNTech vaccine, according to an Israeli study.

5:33 PM

As expected

Sorry...tired head... what's the implication of the booster?

Should add additional protection against the newer variants/mutations, since baseline shots formulated against the original non mutated strain

1

5:43 PM

One of the reasons there more two lines on the vaccination cards is they thought potential of boosters being needed was a possibility, so left room for the additional information

5:44 PM

More than two lines

lol

Yeah, i noticed there was some talk of just rolling it in with the flu vaccine as well.

9:38 PM

We do seem to have gotten better at treating it as well. Since it doesn't seem like we will be getting rid of it, I imagine it will hang around like the flu with the occasional bad years. Would require way more people than i think are willing to get vaccinated to eliminate it.

9:43 PM

Though typically viruses mutate in a way to help them spread more, so typically keeping the host alive longer/not killing the host is beneficial towards that. They still can mutate to be more harmful but i think is less likely if it hurts its ability to spread. So hopefully if its hanging around it will be less deadly.

coronaviruses mutate slower than influenza, and with the mRNA vaccines we can make new vaccines faster than ever and far more targeted

9:59 PM

part of why they picked the spike protein is to lower the chance that mutations will breakthrough the immune response, but from what I understand there may be an even better spot to target so if we do need additional boosters it may only be for a few years at most (hopefully) (edited)

10:05 PM

I'm very excited for some of the other emerging uses for this tech though

2

10:06 PM

for example, there's a trial going on right now as a treatment for some types of cancers

10:09 PM

vaccines for herpes, HIV and others are also under development

10:10 PM

I'm not a medical professional, but it seems to me that this tech is a major inflection point in the fight against a number of diseases

I am super excited about what possibilities the mRNA tech has for the future. I think the covid-19 vaccine cleared some hurdles for the other uses. So i look forward to seeing what happens.

1

Makes sure your hands are beary free of germs.

2

I think "assume spherical rectangle" is the only one I haven't used.

Darren T

I think "assume spherical rectangle" is the only one I haven't used.

I think that's because it's a "given" and doesn't need to be assumed (might depend on assumed frame of reference, though)

1

1

oh lord

clearly David Hahn https://en.wikipedia.org/wiki/David_Hahn

David Hahn

David Charles Hahn (October 30, 1976 – September 27, 2016), sometimes called the "Radioactive Boy Scout" or the "Nuclear Boy Scout", was an American man who built a homemade neutron source at the age of seventeen. A scout in the Boy Scouts of America, Hahn conducted his experiments in secret in a backyard shed at his mother's house in Commerce T...

2

#whydohorsesgetallthegooddrugs

everyone knows that dewormers are the best drugs

4

pretty fast damn car!

Does anyone know if a pvd setup. Has been made in the science area? I saw on the forums it was talked about a long time ago about possibly making one

that's some top notch science there

lolololololololol

... actually may be useful for understanding the recycling of the boxes?

3:54 PM

As funny as it looks

as I understand it doesn't take much grease to render any recycling efforts a moot point using current methods

I've seen it both ways - seems like it may depend on the providers these days. https://www.sierraclub.org/sierra/yes-you-can-recycle-your-pizza-boxes

every bit of guidance I've seen from local providers basically says clean paper only and no oil whatsoever

Oh, I believe that. I've mostly seen it in the north east areas and great lakes. Seem to be different recycling programs than down here.

there seems to be a more powerful financial incentive here for recycling programs to be net positive on short-term cashflow (edited)

and while being fiscally responsible is a good thing and it's best to direct materials to high-value uses, watching my own berg's landfill approach full status in another 2-3 years and having to procure another one or send it elsewhere at greater cost I suspect that slightly greater OPEX to delay that future big line item CAPEX can easily be justified

Dallas says they allow pizza boxes up to figure 3, they don't seem too concerned with contaminants.

Lewisville is all kinds of concerned about contaminants. Plano also used to have great worries ... but that was ~20 years ago.

4:45 PM

https://www.cityoflewisville.com/about-us/city-departments/public-services/trash-and-recycling-information/recycling-services

Recycling Services | City of Lewisville, TX

Residential recycling services in the city of Lewisville, Texas.

4:45 PM

the assumption is likely that they're grease-stained

4:46 PM

I've certainly placed clean pizza boxes in the recycling

4:47 PM

Plastics (updated): Plastic bottles and containers with #1 - #7 resin code (excluding expanded polystyrene)

I've got my doubts that they actually recycle anything other than #1 and #2

I have my doubts anything is actually recycled, regardless of which truck picks it up, or what center it goes to... (paywalls suck so if you find this on the free plz post up) https://www.forbes.com/sites/kenrapoza/2021/01/10/china-quits-recycling-us-trash-as-sustainable-start-up-makes-strides/?sh=2ead24195a56 The gist is: here's a company that's set to make tonnes of $ from "plant-based non-recyclables that biodegrade". They're the rage for the last 3 years or so to my knowledge, including my trip to SanFran where we could choose from 'plant-based biodegradable discardable' or "recyclable" "dinnerware" with the catered meals. 3:1, attendees chose 'plant-based'.

China Quits Recycling U.S. Trash As Sustainable Start-Up Makes Strides

A Virginia based company making to-go boxes is one example of how U.S. made recycling solutions don't need China to take our junk.

aluminum, paper almost always makes sense to recycle; steel usually; glass if there's a consumer nearby; plastic ... the bulk of it gets downcycled into the likes of fake wood park benches

10:19 PM

#1 and #2 are more amenable to being remade into equivalent materials, but I gather the processes are a bit tenuous on their economic viability

10:19 PM

shipping bulk plastic to China for recycling was always a weird thing

Although those "make sense to recycle", it tends to be commercial streams which are. If you take aluminum or steel to your local scrap yard they probably get made into new things. Bags dropped at you local retailer might get turned into plastic deck boards. The stuff your local waste stream processor picks up from your neighborhood... goes to the landfill these days. Anything else would just be too expensive to process, and we consumers won't pay for it (and arguably even if we would it is irresponsible ecologically and economically to do so). That's what shipping it to China was always about: cheaper than trying to process here, and we got to feel good about last night's takeout box being tomorrow's iPhone (whether we were lied to or chose to be blind to the fact that wasn't really happening is probably a debate for the ages, and likely a columna columnb thing). Plus, now "plant based"...

The possibility that both sets of trucks (trash and recycling) go to the same destination should be criminal if that is true. Double the infrastructure and a big lie about it actually being recycled?

I can say that the same truck empties both of my containers on trash day

10:12 AM

I can't say whether there is a stop by some facility to dump one load prior to making the rounds for the other

Technology has gotten decent enough to do single stream these days, although there are places that just pretend as well (edited)

observations of Mt. Lewisville & other landfill facilities in the metroplex suggest that ain't happening here, unless by 'single stream' you mean straight to landfill (which would agree with my earlier statement).

if it's single stream why do I have to pay more for a separate recycling bin

10:21 AM

and why won't Dallas bring me the second bin

facilities which sort anything other than metallic from non metallic are pretty unusual, as there is no technology for nonmetallic sorting outside of carbon-based computer power and scanning for the little images with numbers in them. (edited)

Some of the computer vision is getting scary, along with laser identification of plastic types... but yes, it's most likely it just gets all dumped.

That nut will eventually be cracked, but for now...

Mt Lewisville used to have onsite primary-stream extractors onsite. but then the foothills encroached and they had to clear out.

3:29 PM

Lewisville certainly communicates constantly about recycling and what causes loads to be rejected (contamination, non-recyclable items in the bin) thus it seems they actually recycling things

I recall some bruhahah about the same truck running general refuse and recycling, but I suspect that's for convenience and doesn't impact yield since recycling is single-bin anyway

holy shit - warding pendants https://arstechnica.com/science/2021/12/anti-5g-quantum-pendants-are-radioactive/

Anti-5G “quantum pendants” are radioactive

Dutch authority for nuclear safety issues warning, bans 10 scammy "negative ion" products.

ESmith

holy shit - warding pendants https://arstechnica.com/science/2021/12/anti-5g-quantum-pendants-are-radioactive/

Sir, you are banned from the DMS Discord for violating the Rules of Engagement. This post belongs in the pseudo-science discussion, not "science".

aw snap

Saw this lot of glassware, light microscopes, and other stuff for auction, if team science is interested: https://renebates.com/a_lot_2.php?id=167&lot=522&cat=all

I don't like it but the math checks out

really makes the scale apparent https://www.reddit.com/r/woahdude/comments/s4njnp/tongas_hunga_tonga_eruption/

r/woahdude - Tonga's Hunga Tonga eruption.

5,388 votes and 120 comments so far on Reddit

https://preview.redd.it/1b1qx592yvb81.gif?format=mp4&s=57ae7d936a8022e061261f3819d7482d1aa36c1a

ESmith

Click to see attachment 🖼️

https://www.science.org/content/blog-post/things-i-won-t-work-dioxygen-difluoride

And yes, what happens next is just what you think happens: you run a mixture of oxygen and fluorine through a 700-degree-heating block. "Oh, no you don't," is the common reaction of most chemists to that proposal, ". . .not unless I'm at least a mile away, two miles if I'm downwind." This, folks, is the bracingly direct route to preparing dioxygen difluoride, often referred to in the literature by its evocative formula of FOOF.

Science | AAAS

ESmith

https://www.science.org/content/blog-post/things-i-won-t-work-dioxygen-difluoride

And yes, what happens next is just what you think happens: you run a mixture of oxygen and fluorine through a 700-degree-heating block. "Oh, no you don't," is the common reaction of most chemists to that proposal, ". . .not unless I'm at least a mile away, two miles if I'm downwind." This, folks, is the bracingly direct route to preparing dioxygen difluoride, often referred to in the literature by its evocative formula of FOOF.

I seriously loved the "Things I won't work with" blog. I'm still inspired to make some Azidozide Azide

his piece on chlorine trifluoride inspired me to track down a copy of Ignition!

Regarding Triazides being easy to handle: "'Easy to handle' compared to what? Cocaine-soaked cobras?" (edited)

12:18 PM

that's been a good metric of comparing terrible things, but then again I've mixed bucket sizes of 70/30/10 flash with @Lampy (Ken Purcell) on more than one occassion

12:19 PM

PAT events are fun and this blog is always putting things in perspective on what we're making versus what's out there

Yep 10-11 kilos of butt puckering fun. "gentle and forgiving nature" indeed!

hard-hitting science research going on here https://www.researchgate.net/publication/322530755_Analysis_and_Qualitative_Effects_of_Large_Breasts_on_Aerodynamic_Performance_and_Wake_of_a_Miss_Kobayashi's_Dragon_Maid_Character

9:40 AM

https://news.3m.com/2022-02-24-3M-scientists-This-Corsi-Rosenthal-box-movement-is-legit?utm_term=corp-brd-en_us-ba-corsirosenthalbox-osm-mtpl-na-learn-is-feb22-na

3M scientists: This Corsi-Rosenthal box movement is legit

Indoor air quality is having a moment. 3M scientists tested the DIY Corsi-Rosenthal boxes and concluded that they are effective.

6:12 PM

This is seriously cool

6:12 PM

We should build some!

I wonder if a laser cutter filter could be made in the same way.

thought that looked familiar... https://talk.dallasmakerspace.org/t/a-simple-and-effective-diy-air-filter/86715

A simple and effective DIY air filter

This was mentioned on TV by a lady has a an environmental pollution I believe. She said it is she said it is very and not overly overlay expen

Nice!

themitch22

I wonder if a laser cutter filter could be made in the same way.

I don't see why not, but you'd probably need a much higher CFM fan instead of the cheapo box fans

One problem with lasers is just the amount of stuff. You need a lot of filter area or to replace them regularly.

Good point, might work with a small, low usage laser then

10:50 PM

Probably wouldn't survive a day at DMS

My wife's school district built some to test in elementary school after they could not get replacement filters for the units they had.

8:31 AM

Alton Brown has a method of stacked filters on a box fan used to dry jerky. Looked janky but did work. Although for the cost of 6 filters and a box fan you could buy a food dehydrator.

8:33 AM

@aceat64 glad to hear your voice/text around DMS again.

2

for anyone that doesn't know the origin of this quote: https://en.wikipedia.org/wiki/Long-term_nuclear_waste_warning_messages

Long-term nuclear waste warning messages

Long-term nuclear waste warning messages are intended to deter human intrusion at nuclear waste repositories in the far future, within or above the order of magnitude of 10,000 years. Nuclear semiotics is an interdisciplinary field of research, first done by the American Human Interference Task Force in 1981. A 1993 report from Sandia National L...

it's actually a really interesting problem to solve, how do you warn people in the far distant future about high grade nuclear waste

2:38 PM

huh, I didn't think about that

2:39 PM

one of the proposed ideas was a song/poem, but the warning message itself being a meme is interesting

you solve it like the Weldon Spring site: https://www.google.com/maps/@38.6946418,-90.7276671,3a,36y,353.53h,93.26t/data=!3m6!1e1!3m4!1sYdN5HUysDSvijf4SSf-ONg!2e0!7i16384!8i8192

Google Maps

Find local businesses, view maps and get driving directions in Google Maps.

we'll keep repeating it because it's funny, and maybe in the future they'll do the same

enormous gravel / rubble pile on mediocre-to-useless land

but humans are intrigued by anomalies

by the time the knowledge has been lost the danger of the waste will have been greatly reduced

if someone in the 1850s came across that, they'd probably dig

end of the day warnings will only go so far if the knowledge has been well and truly lost

yup

also, 1850s people might be curious, but they'd surely lack the ability to seriously quarry the area for funsies if it's not valuable materials

I think the idea of geological storage is probably best, there's work being done on vertical drilling based systems for this, that would all but eliminate the ability of someone to physically disturb or extract the waste without sufficient tech (which should mean they are at a level where they understand radiation)

2:44 PM

https://www.youtube.com/watch?v=aaky2obgsYs

Deep Isolation

Deep Isolation Technology (International)

2:45 PM

even if you know exactly where the waste was placed, it would be difficult to retrieve

I do wonder if there's some misunderstanding by the public about the nature of long-term waste disposal. the hot waste that could kill in minutes or hours has short half-lives and has simmered down to much lower intensity in storage pools then dry cask storage long before it's a candidate for long-term disposal.

2:47 PM

doesn't mean you want to crush it up into gravel and pave drainage ditches with the remaining stuff, but the risks are mostly of long-term exposure and groundwater contamination

yeah, it's actually pretty safe stuff all things considered

2:48 PM

in practice it's been far less dangerous than burning coal

thus, dispose of it appropriately as best we can for the long haul and make the best warning indicators that we can but don't get too hung up on the oft-stated one hundred thousand years timescale

I like the deep isolation system since it can be done onsite most of the time

2:50 PM

and there's no need for the warning systems

2:52 PM

at this rate though, we might have actual fusion reactors before we can build a new fission plant in the US

2:52 PM

despite the "fusion never" funding level we've been at for decades

eh, as much quibbling as fusion researchers are doing to round Q to >1 I'm not confident

ESmith

thus, dispose of it appropriately as best we can for the long haul and make the best warning indicators that we can but don't get too hung up on the oft-stated one hundred thousand years timescale

wouldn't Eeeeeeloon Musk have us making the same mistakes on Mars by then?

not a lot of biosphere on Mars

Not yet!

how do aerospace engineers put it - Mars has just enough atmosphere that you have to plan for it and address reentry heat but not enough to provide any meaningful deceleration for a probe

And enough to carry dust which will ruin your day

https://www.youtube.com/watch?v=aKK7vS2CHC8

NASA Jet Propulsion Laboratory

NASA's Perseverance Rover Sees Solar Eclipse on Mars

https://talk.dallasmakerspace.org/t/makers-please-vote-in-the-following-poll-to-decide-upcoming-science-committee-videos/90576 Poll for prioritizing different science videos is up on talk. Would appreciate votes in any 1 to 3 you are interested in

Makers, Please Vote In The Following Poll To Decide Upcoming Scienc...

Hello Makers, I hope you are all doing well. I have a lot of scripts and video series planned out for release on the Dallas Makerspace learn website. There are so many things I want to cover, but I want to focus on topics that the community finds interesting first and foremost. Science is far broader than just physical science. There is managem...

ESmith

Click to see attachment 🖼️

OMG, I missed this one. This has to be the greatest disinformation push since the Hitlery Campaign proposed to Szrok & Paige that Trump was colluding with Putin!

ESmith

Click to see attachment 🖼️

That's not how any of this works...these "Trollies" go through BOTH slits (you forgot about the EO Switches after the slits which Bell and later Aspect used after the slits, these are the proof in the pudding, as they say). Where did you get this unadulterated bullsh!t? OMG, we are back to believing Bohm, after he was completely "cancelled" at TUDelft in 2018.

humor. it escapes you.

Nah, you don't know any of the Maths, so these concepts are just verbal to you. Words don't carry reality in your World, objective reality looks very different in this case.

Is science wanting this ?

10:11 PM

Ping

Shart... nice

the reporting on the NIF fusion 'breakthrough' is abysmal. The Q factor they're claiming is thermal, at the back of the process, and none of it was - or could be - converted to useful ends. While relevant for improving theoretical understanding of deuterium/tritium fusion, it doesn't mean we're suddenly 5-10 years from practical commercial fusion. Because that actual Q factor was almost certainly <0.01 accounting for all the inefficiencies in the laser pumps and other apparatus. (edited)

ESmith

the reporting on the NIF fusion 'breakthrough' is abysmal. The Q factor they're claiming is thermal, at the back of the process, and none of it was - or could be - converted to useful ends. While relevant for improving theoretical understanding of deuterium/tritium fusion, it doesn't mean we're suddenly 5-10 years from practical commercial fusion. Because that actual Q factor was almost certainly <0.01 accounting for all the inefficiencies in the laser pumps and other apparatus. (edited)

Thank you for sharing that. I don't know enough about the subject and it's hard to put into perspective what they are talking about.

Backend Qplasma has been the near-exclusive figure quoted in fusion research for decades. It's an important scientific metric for sure and getting that value >1 has to happen. But Qtotal is the metric that ultimately matters and avoiding mention of that value has been a long-running problem in the field of fusion research as well as reporting on the subject.

a longstanding sci-fi (and SimCity) trope looks like it's going to be tested soon https://arstechnica.com/science/2023/01/headed-to-space-today-test-hardware-for-a-solar-power-plant/

Space-based solar power hardware ready for actual testing in space

A Caltech solar power project has a payload on the latest Falcon 9 launch.

4

https://www.msn.com/en-us/health/medical/tiny-radioactive-capsule-lost-in-australian-outback-carries-the-equivalent-of-10-x-ray-blasts-as-fears-mount-it-could-be-picked-up-by-passing-traffic/ar-AA16Tinl https://www.reddit.com/r/pics/comments/10pabcr/the_only_thing_i_found_while_metal_detecting_in/

Tiny radioactive capsule lost in Australian outback carries the equ...

The item, which is 6 mm by 8 mm in size, may have been caught in the tires of passing vehicles and taken off track to where teams are searching.

r/pics - The only thing I found while metal detecting in rural Aust...

31,496 votes and 1,285 comments so far on Reddit

2