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420chan is Getting Overhauled - Changelog/Bug Report/Request Thread (Updated April 10)
climate change Ignore Report View Thread Reply
Frederick Trotson - Tue, 07 Aug 2018 05:17:20 EST ID:qv3Bs+v/ No.79191
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How fucked are we? Are there any viable solutions? How will the world look like in 50 years? 100years?
Forgive me if this isn't the right board but i'm too hot to do a lot of effort.
25 posts omitted. Click View Thread to read.
Lillian Clayfield - Fri, 10 May 2019 04:48:22 EST ID:2Rt7PycG No.79418 Ignore Report Reply
Heavy metals and residue form medication is a problem, but the parasite/disease thing is just them being retards. Even something simple as a hot compost can mitigate those.

Industrialized countries still use a lot of human waste from the sewage system as agricultural fertilizer, but because it's mixed in with gey water it's a lot more work than it would be in a more decentralized system.
Charlotte Havinggold - Tue, 21 May 2019 21:14:32 EST ID:Hr/Y4hP3 No.79420 Ignore Report Reply
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How about we do nothing and just die out in 10,000 years?

Problem solved.
Hannah Bocklechot - Wed, 22 May 2019 17:33:34 EST ID:8Lh4u3KX No.79421 Ignore Report Reply
AIFK it's just modern civilization that's threatened. We are highly dependent on industrial agriculture that needs vast troths of irrigable land.

A medieval level society would do just fine.
Ironically so would one having fusion powered water desalination.

Home-made Dynamite / Making A Bomb Ignore Report View Thread Reply
Nigel Pockham - Wed, 11 Apr 2018 03:23:05 EST ID:ynVJ73wC No.79055
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Hypothetically speaking, I am curious
Having rewatched Fight Club recently what with the home-made dynamite there
How would /chem/ recommend making a bomb, hypothetically speaking?
Asking for a friend. Like, not a huge bomb, but, you know.
17 posts and 8 images omitted. Click View Thread to read.
Katsuragi !hZYzX5/C3s - Thu, 24 May 2018 13:44:08 EST ID:/AXFeCtj No.79113 Ignore Report Reply
I would recommend not making a bomb.
Simon Brookfield - Fri, 13 Jul 2018 13:14:37 EST ID:WDigv0Ec No.79172 Ignore Report Reply
Source please?
Nigel Fibberhedge - Tue, 21 May 2019 10:19:47 EST ID:MsKeCbfg No.79419 Ignore Report Reply

The CIA nigga

Why is this the case? Ignore Report View Thread Reply
Beatrice Blackville - Thu, 25 Apr 2019 01:23:27 EST ID:bUpRMfRf No.79388
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I've been enrolled in a Trigonometry course this semester and I have been enjoying it. I also think the main Pythagorean theorem is one of my new favorite equations, but I just don't understand one thing. Why is the result of the expression equal to one?

sin²β + cos²β = 1

We've learned about "proves" where you try to arrive to the answer by choosing the busiest side and in this case the left side, but how would you go about proving this specific this? I heard that more advanced math knowledge was needed (e.g. Calculus) but is that really true or can this be proven using what is learned in Trigonometry itself?

Also, in other Trig courses, do instructors actually assign this expression as a homework question all to itself? I thought this was just a formula given to help solve problems and not an actual problem.

I also recently learned that Pythagoras was a philosopher and even had his own cult. What are some of the other things this man was known for?
10 posts and 2 images omitted. Click View Thread to read.
press - Fri, 03 May 2019 16:09:04 EST ID:kphkeya5 No.79409 Ignore Report Reply
wouldnt you say the allegory of the cave loosely fits the idea of simulation and how we might perceive it as reality?
Betsy Boddleshaw - Fri, 03 May 2019 16:45:56 EST ID:QiRUncgI No.79410 Ignore Report Reply
The allegory of the cave is a metaphor for epistemology, I don't think Plato was positing it as a realistic scenario, whereas the simulation argument might be taken for a metaphor about epistemology but primarily positions itself as a realistic explanation for reality. (cf. the Evil Genius argument; Descartes didn't really believe he was a brain in a vat, he was trying to prove a point.)
There really isn't a difference between the way our brain simulates the world and a computer simulation of the world; but that itself, comparing the brain to a computer, is just another metaphor, and largely the product of the repeating phenomenon in the history of science where the rest of the universe is re-contextualized as being 'like' whatever the most important technological advance of the day is (this has happened with everything from fire, writing, and wheels to rail-roads and electricity.)

Not to say that he or Pythagoras couldn't eventually understand the concept of a computer and programming languages, and be able to relate them to how the mind and possibly the universe works, but you would need to educate them about all the stuff that underlies those ideas first. Like, the number zero and real algebra would be the first big things.
Rebecca Sondlestock - Thu, 09 May 2019 09:36:08 EST ID:fBrSG5+b No.79416 Ignore Report Reply
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And yet the work of flatland and explanations of dimensions beyond human comprehension are adequately expressed using the allegory of the cave.

I do enjoy that you make the distinction that belief is not relevant to argument. So rarely do people understand that critical nuance.

Do STEMfags have anything at all between their ears? Ignore Report View Thread Reply
Sophie Niffingchutch - Tue, 09 Apr 2019 00:44:49 EST ID:AtxvGGY2 No.79348
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The STEM meme has been floating around for so long now that the people who associate themselves with it have a track record of behavioral patterns to analyze. One common behavior of the typical STEMfag is to loudly proclaim that they're more intelligent than those people who study the humanities and the evidence they provide of this is always someone else's achievement, usually the achievement of someone like Issac Newton who was an extensive studier of non-STEM topics and was able to achieve insight by not being a closed minded know-it-all. What is it about the humanities which upsets STEMfags so much? Why are those cringing cowardly sissies so frightened by things that can't be directly quantified? It seems so lame.
10 posts and 5 images omitted. Click View Thread to read.
Albert Bagglestock - Wed, 17 Apr 2019 23:57:14 EST ID:AtxvGGY2 No.79375 Ignore Report Reply
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Molly Pittham - Mon, 29 Apr 2019 21:51:44 EST ID:WRsr1JN8 No.79402 Ignore Report Reply
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jesus, dude...
Hugh Crammleville - Thu, 02 May 2019 14:10:06 EST ID:OKg3wZIp No.79408 Ignore Report Reply
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Read this cool children's book which eventually concludes that science and art are best in harmony, inspiring scientific experiments and informing creativity.

Any way to extract mitragynine from kratom? Ignore Report View Thread Reply
Reuben Pandermedge - Tue, 13 Nov 2018 17:24:30 EST ID:pv6fN59z No.79275
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First off I'm not a complete noob asking if adding hydrogen peroxide to kratom leaf makes 7-hydroxymitragynine.

I'm basically just wondering if it's even possible to extract 90%+ pure mitragynine from kratom. Would such a thing be possible without chromatography? Simple A/B then chloroform and then maybe specific solvents/PH?
10 posts omitted. Click View Thread to read.
Henry Hocklested - Mon, 01 Apr 2019 12:53:26 EST ID:RsiLyIYo No.79342 Ignore Report Reply

I would rather not risk exposure to concentrated picric acid.
Even in a well equipped lab, that is one that will give your EHS people heart attacks.

Or the friction sensitive explosive compounds that result from it's reaction with organics.

HCL will crash out your alkaloids just as well.
hsn - Thu, 25 Apr 2019 10:57:06 EST ID:DRDiF8PI No.79391 Ignore Report Reply
I feel like im having a stroke, I posted here to tell you this thread isn't mine and some other shit about methanol but the post is gone.
press - Fri, 26 Apr 2019 16:22:33 EST ID:kphkeya5 No.79400 Ignore Report Reply
according to kirt the servers were fucked up by a snow storm and the backup wasnt up to date. but tbh i cant be arsed to reconstruct the time line.
i was just repeating what somebody else posted. i see your point but i suppose employing picrate to precipitate alcaloids comes from the same time where you had to spend multiple years to describe the structure of a molecule. not to shit on indian or indonesian publications

Women in STEM Ignore Report View Thread Reply
Jeff - Tue, 23 Apr 2019 19:13:04 EST ID:b3zaIvHO No.79381
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call em flowers, cause they supported by STEM
4 posts and 1 images omitted. Click View Thread to read.
Martha Funkinchet - Thu, 25 Apr 2019 19:48:24 EST ID:WRTudS/z No.79392 Ignore Report Reply
One of Gauss' many great observations was that 1 isn't a prime number because its a unit.
Phoebe Ducklefuck - Fri, 26 Apr 2019 07:42:42 EST ID:FyzhtNRJ No.79393 Ignore Report Reply
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Zero is my favorite prime number
One is my second favorite prime number
Can you guess my third favorite prime number?
Nicholas Packleman - Fri, 26 Apr 2019 09:27:51 EST ID:QiRUncgI No.79397 Ignore Report Reply
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>>guess my third favorite prime number?
oh, you ;)

Science denialist vent/ rant. Ignore Report View Thread Reply
James Mother Fucking Randi - Fri, 31 Jul 2015 04:30:23 EST ID:FW3hqiSI No.76865
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I started a thread on /spooky/ asking for any evidence of the paranormal or supernatural.

Instead all I got was a bunch of personal attack and people babbling nonsense and presenting it as truth. Then when shown they are incorrect with verifiable data rather than pseudoscience they resort to personal attacks again. They and pretty much all other magical thinkers take any sort of challenge to their beliefs as a personal attack.

I was at a party a few months back and some girl was talking about how she went to some yoga guy who does "laying on of hands". Which involves doing yoga while a dude puts his hands on your body and makes weird noises. Supposedly doing this achieves any number of effects from healing wounds, curing depression and other supposed boons.
not arguing the therapeutic effects of yoga just the laying on of hands part
I tried to understand what she was explaining to me by asking questions. Like asking her what was actually happening because it made 0 sense to me. Instead she started insulting me for being closed minded and shit.

Also in real life I live in the US south. Where people who think the world is 6000 years old is the norm.

Needless to say I deal with people who use magical thinking on a regular basis.
They are 100% willing to reap the benefits of science and the technology that comes with it until it conflicts with some myth or story about ghosts or some shit some one told them. Then all reason and logic go out the window.

Why do so many people especially in the us reject verifiable facts over what feels good? I went to the same public schools as them, I was also raised in a religious household (jewish, although I'm no longer religious). The only difference is that I chose the rational answer.

Idk, maybe I'm just a giant nerd who paid too much attention in school. It's frustrating living among all these science denialists.

Also all of the above isn't a rant about religion. You can be religious and a realist, I have several christian friends who understand their religion and all others aren't meant to be taken literally. I actually respect people who can strike the balance between their religion and what the real world shows them.

>Pic very related.
104 posts and 15 images omitted. Click View Thread to read.
Martha Sonnerman - Wed, 17 Apr 2019 20:14:08 EST ID:QiRUncgI No.79374 Ignore Report Reply
This is like a zoo exhibit, guys. Don't feed the positivists ontological albatrosses, they just become epiphenomenal.
James Randi - Thu, 25 Apr 2019 06:10:45 EST ID:LIARuhXT No.79390 Ignore Report Reply
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Reading through this whole thread and I just realized the wizard has spent time studying the blade you guize.

>My time as a butcher has significantly improved my ability to fight with a blade.

Look out we gotta level 3 polymath swordsman on our hands guys.
Phoebe Ducklefuck - Fri, 26 Apr 2019 07:44:36 EST ID:FyzhtNRJ No.79394 Ignore Report Reply

Give us one free miracle and we'll explain the universe.

I don't understand the problem in making sustainable fusion happen Ignore Report View Thread Reply
James Randi - Tue, 23 Apr 2019 11:30:45 EST ID:LIARuhXT No.79377
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Explain it to me a lay person.
The issue is they don't have enough energy to:
A) Create and sustain a reaction long enough
B) Also power the containment of the whole reaction at the same time
C) Generate this whole reaction not at some massive net loss of energy.

Maybe I'm stupid or over simplifying this. Why not hook one of these big fancy Chinese reactors directly to say a gigantic hydroelectric dam (or other renewable resources) that more or less generates infinite huge amounts of energy and use those to power reactors?

Pretty stoned.
3 posts and 2 images omitted. Click View Thread to read.
Samuel Cirringwater - Wed, 24 Apr 2019 00:57:45 EST ID:AtxvGGY2 No.79383 Ignore Report Reply
The sun uses it's gravity well to contain the reaction and allow it to b continuous, its a neat trick, but not all that possible on earth. If you're gonna dig real deep, why not just go down to 30km deep and use molten planetary core as a heat source? Then you could skip the bombs and have continuous power instead as a further bonus.
On the topic of contain reactions, I remember reading about the accidental launch of the cap of surprisingly powerful underground test which popped off with enough velocity to reach orbit. could such a trick be used as an inexpensive launch option for dead weight or would the cargo be obliterated in the acceleration? no way a human could handle the g forces in a launch like that.
Emma Shittingforth - Wed, 24 Apr 2019 10:42:51 EST ID:8Lh4u3KX No.79384 Ignore Report Reply
>If you're gonna dig real deep, why not just go down to 30km deep and use molten planetary core as a heat source? Then you could skip the bombs and have continuous power instead as a further bonus.
Of course, that's simple geothermal.
The problem is digging deep enough to reach a high enough temperature is only feasible in certain volcanically active regions. Normally the earth's crust is way too thick to dig trough it.

On the topic of "space guns", yeah those work but the g-forces required are so high that it's not even feasible for equipment transport to space. Raw materials would work, a solid hunk of metal would withstand the several 1000s G involved.
A much more useful approach are concepts based on superconducting magnets and a long enough track so that G forces stay within a sane region.
And again you don't really need raw materials in space, once you are there mining asteroids is way more efficient than overcoming earth's gravity well.
Emma Shittingforth - Wed, 24 Apr 2019 11:09:37 EST ID:8Lh4u3KX No.79385 Ignore Report Reply
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The neatest fusion power concept is "muon catalyzed fusion" imho:

There exist heavy particles called muons that can replace electrons in regular atoms.
The additional weight of the muons lead to fusion of the "muonized" atoms pretty much independently of the temperature. Once a muon initiated fusion to one pair of atoms it moves on to the next one and so on.

The problem is three fold though
  • we don't know an efficient way to produce muons.
  • muons decay very fast
  • muons get "stuck" after a random amount of reactions

I don't think it's possible to change the latter two because that's a random process from quantum physics.
But producing muons efficiently I don't see why not.
How it's currently done is using a particle accelerator to smash protons and then "filter out" the muons out of the particle soup.
If we had a way to convert a given amount of energy straight into muons (hypothetically) muon catalyed fusion would already net a huge energy surplus.

It's also very controllable and theoretically feasible to convert the energy from fusion straight into electric charge at the subatomic level. (muons kick out electrons remember)

Time warp Report View Thread Reply
Therm0ptic !cyBOrG7t12 - Wed, 20 Feb 2019 17:56:06 EST ID:2VxE8R8t No.79306
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There was a snowstorm where the servers are. It got so cold that it started to go below absolute zero, resulting in particles moving backwards in time. So here we are.
14 posts and 1 images omitted. Click View Thread to read.
Therm0ptic !cyBOrG7t12 - Mon, 15 Apr 2019 02:07:59 EST ID:Jyqi6ep7 No.79369 Report Reply
You could be on to something. How do we test this?
press - Mon, 15 Apr 2019 16:24:42 EST ID:kphkeya5 No.79370 Ignore Report Reply
the letters ive written to multiple universities and kirt have yet to be answered. quite shocking if you take into account that the grant i asked for was a mere 1000 dollars (adjusted for inflation during the experiments), which according to my alculations would be the mere minimum to fund a trial. further research would obviously take much less time once the direction of time travel isnt limited to forward and side effects such as pissing myself are minimized. this far ive been able to travel up to 4 days at 1 litre of fuel per day traveled

i suspect mainstream science is supressing work in this field. neil degayass tyson has blocked me on twitter
Therm0ptic !cyBOrG7t12 - Tue, 16 Apr 2019 13:01:06 EST ID:j9C4BMRh No.79371 Report Reply
Damn. I guess we should set up a Taima University so deep researchers like you can have the lab space and resources necessary for real alcohomploshments in your field.

Long time 420..er but not /chem/ person Ignore Report View Thread Reply
Alice Shakewater - Sun, 31 Mar 2019 05:06:11 EST ID:U39B6FlA No.79341
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I checked out all the boards here as a teen cus there are so many devoted to so much
this chan is the tightest shit

Anyway my guys

I have done LSD and I have grown shrooms
more into the shroom thing
Im really interested in altered states of consciousness
like how the LSD works in the brain
also making it, Im sure this is a very stereotypical post but I really am going back to school and not fucking up (hopefully)
I am good at computers and originally was in-between a degree in art and getting a credential to teach kindergarten
Im good with kids and around 80k a year and grading "the colors"
would be the peak of mediocrity for me and just let me coast and die which sounds nice
I am also decent at computers and thought I could do data science things
BUT I believe I can probs pursue data science and art on my own
& would rather go a little harder and choose a biotech science that involves the synthesis of chemicals
or something that would lead me to nanotech or cyborg shit
I am excited to school I would like to science these are my words please help me
Esther Connerhat - Mon, 01 Apr 2019 21:14:18 EST ID:QiRUncgI No.79343 Ignore Report Reply
Would love to help but not really seeing a question in there. I think like most people at your stage you need to explore your options and really come down on a few possibilities...this is more /qq./ As for trying to synthesize LSD, it's one of the more difficult ones out there, you need advanced practical biochemistry...you probably should try your hand at basic tier chemistry before you can even answer the question of if it's something you would want or be capable of doing.

Giant Robot Pilot Training Video Ignore Report View Thread Reply
Shitting Gattingworth - Sat, 30 Mar 2019 12:45:04 EST ID:QW41opDA No.79340
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Since my baby, the Engineering board is gone, I guess this goes here.

Megabots have released a "training video" showing how they pilot Eagle Prime, the monster that defeated the Japanese giant robot.

Man, it's a pity Canada never got old Neogentronyx' NMX04-1A Big Red walking.

/STEM/ Ignore Report View Thread Reply
Archie Werryshaw - Thu, 01 Nov 2018 23:24:25 EST ID:wkZjcyRQ No.79273
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Maybe we should have /stem/
4 posts and 1 images omitted. Click View Thread to read.
press !YxHJQHLaEk - Fri, 29 Mar 2019 15:50:59 EST ID:XqaGYEnB No.79336 Ignore Report Reply
maybe stick around to see if it did anything?
i mean
einstein and bohr thought the new understanding of the atom would bring world peace, and then were really sad about something something in japan, when the atomic bomb actually stopped the cold war from becoming hot. thus most of the suffering got diffused by splitting up germany and korea, bombing vietnam, laos and kambodsha with enough bombs to make the whole thing seem like a death cult ritual and further destabilizing the craddle of civilization, as if the first world war didnt do enough damage, by shoving arms up the asses of whatever warlord was trendy. also something in latin america something something
dont get me wrong i still support nuclear energy and am very curious about this /stem deal
Emma Sendershaw - Sat, 30 Mar 2019 05:47:54 EST ID:P9TUG1D8 No.79337 Ignore Report Reply
theres no reason sticking around this site, it was already dying before it went down, but that shit plus the lack of any reasonable backs was the coup de grace.
press !//CEObOMBY - Sat, 30 Mar 2019 12:23:50 EST ID:Xcif41Xj No.79339 Ignore Report Reply
good bye then?
unless yyoure trying to pull one of them jesus "do as i say not do as i do" spiels on me

past time travel Ignore Report View Thread Reply
Jenny Tillingford - Fri, 30 Nov 2018 15:10:58 EST ID:GtE/9ebI No.79290
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What kind of time traveling technology are we going to have in the future?

200 years ago the best way to view past events was through art, paintings, drawings, or written text.

In the present we all have smartphones that can record audio/video at any given moment giving us an exact copy of the present for viewing in the future. There is also youtube and other major databases of video/audio from the past that is an exact copy of reality at that given time and setting in the video.

What is coming in the future? Is it 10s of thousands of years from now, hundreds? We're clearly going to have something that is just as much of a mind blowing leap as paintings -> recorded video. Are we finally going to be able to communicate and interact with the past in real time?
3 posts omitted. Click View Thread to read.
Jack Wallerfog - Sat, 16 Mar 2019 05:34:50 EST ID:RVtEPlUX No.79322 Ignore Report Reply
recently i read interesting aticle about time traveling
Nicholas Goodlock - Sat, 16 Mar 2019 17:51:41 EST ID:dl9lAnzN No.79323 Ignore Report Reply
Hm maybe this isn't your sci-fi blog?
>>If I were you guys I’d move to Malaysia FAST
What plebian timeline are you from? My crystal ball says dragons will eat all nations except Lichenstein. Howboudah?
C-Higgy !lfsExjBfzE - Tue, 26 Mar 2019 20:01:49 EST ID:8P8c+L33 No.79332 Report Reply
Hopefully something with portals, that would be dope.

Could this even work as a mdma cousin Ignore Report View Thread Reply
Frankthetaco - Sat, 16 Mar 2019 03:20:33 EST ID:QsIEMZCJ No.79321
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Thoughts can this even work as a stable molecule
press - Tue, 26 Mar 2019 14:42:29 EST ID:eWOCLe3q No.79329 Ignore Report Reply
stable under which conditions, like just sitting airtight, dry, at roomtemp. i guess
the phosphoric ester would be hydrolyzed in vivo, so youre basically dealing with methylone with an added phenolic function at the 2 position of the phenyl

most likely active but how active, god only knows unless you can dig up a research paper with the binding constants for several receptors
wiki wasnt too informative on 2'hydroxymethylone/2'methoxymethylone and i know fuck all about QSAR

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