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420chan is Getting Overhauled - Changelog/Bug Report/Request Thread (Updated April 10)
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
File: 1556033445586.gif -(2481121B / 2.37MB, 480x303) Thumbnail displayed, click image for full size. 2481121
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.
2 posts and 1 images omitted. Click View Thread to read.
>>
Thomas Gellystone - Tue, 23 Apr 2019 18:41:25 EST ID:8Lh4u3KX No.79380 Ignore Report Reply
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>>79379
Depending on the variant of the PACER project the bombs would have been dumped into the cavern several times a day (upto every 20 minutes)
There are different variants also, some supposedly safer than others (using molten salt as an intermediate heat storage)
It's also somewhat "scaleable" in a sense you can build a "small" version that is "just" about the size of a decent regular power plant, but also a humongous scale which could even power other mega-engineering projects like orbital launch loops, space towers or if you stretch it maybe an orbital ring.

Of course there are several reason why the PACER concept was flawed, one of which is of course producing hydrogen bombs at a rate that would dwarf the worst cold war scenarios.

In regards to fusion in a Tokamak that's not continuous but pulsed too. They have to refill the torus with plasma, heat it, constrict it, ignite it and then wait for the reactor walls to extract the heat. Much faster pulses though, but still nowhere continuous.
>>
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
>>79383
>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.


Women in STEM Ignore Report View Thread Reply
Jeff - Tue, 23 Apr 2019 19:13:04 EST ID:b3zaIvHO No.79381
File: 1556061184766.png -(62871B / 61.40KB, 450x400) Thumbnail displayed, click image for full size. 62871
call em flowers, cause they supported by STEM
>>
Esther Greenson - Tue, 23 Apr 2019 19:22:12 EST ID:WRTudS/z No.79382 Ignore Report Reply
people who call themselves educated should be able to recognize that all people are individuals and the nobody has an easy time learning calculus, doing while being a woman or black or a cripple or nauseatingly ugly doesn't make you any more special than anyone else who can complete the same tasks


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.
16 posts omitted. Click View Thread to read.
>>
Angus Murdridge - Sun, 14 Apr 2019 00:54:27 EST ID:tS892d3+ No.79365 Ignore Report Reply
>>79192
>>About half our population will fight any action on climate change,

that's because alarmist blather has been going on for at least 2 decades, e.g., saying 15 years ago that we had 10 years to stop climate change or we'd be inundated by repeated massive hurricanes, etc. I remember some nitwit in Australia claiming that by 2015 everyone down there would have to move underground to escape the heat.

If you'd have just framed things in terms people could relate to, like becoming energy independent or simple pollution control, you'd have gotten much farther.

Instead you leftists attacked historically democrat coal mining areas, turning them republican, and spouted off the most extremist dire predictions, none of which have come true.

Enjoy your ruined planet.
>>
Martha Mennerdock - Sun, 14 Apr 2019 06:59:45 EST ID:N1LBmRNI No.79368 Ignore Report Reply
>>79365
It's mostly because in the 80s oil companies realised climate change was a thing and then decided to pour money into keeping quiet.

https://www.theguardian.com/environment/climate-consensus-97-per-cent/2018/sep/19/shell-and-exxons-secret-1980s-climate-change-warnings

It's not "alarmist blather" as much as people shut out stuff they don't like. You're evidence of this. The tone has changed from "we have 10 years" to "the damage is done but we might not all die if we act now". They frame it as "we can do something" because people are going to be less inclined to act.

Also "it's a problem for later me/my kids".

Oh and lastly because it doesn't matter what we do if we don't make industry follow. And we can't because if you live somewhere that isn't a warzone they probably own your country and it's worthless politicians and leaders.

>>79299
It pays for itself in most places. Unless you're bordering the arctic circle or have a weird microclimate where it's always cloudy it will be worthwhile. Now aside from tidal power most renewable energy doesn't provide a predictable steady power supply but that's why you use a mix of sources and storage mediums and possibly non renewable resources, but to the most limited extent possible.
>>
Barnaby Fittingseck - Mon, 22 Apr 2019 19:14:35 EST ID:VzLsuOPL No.79376 Ignore Report Reply
>>79296
what do you rely on for new then


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.
8 posts and 4 images omitted. Click View Thread to read.
>>
press - Sat, 13 Apr 2019 08:56:15 EST ID:P8IZvbAs No.79362 Ignore Report Reply
>>79358
halt die fresse.
>>
press - Sat, 13 Apr 2019 09:05:32 EST ID:P8IZvbAs No.79364 Ignore Report Reply
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>>79362
ne wirklich, halt die fresse.guck mal lieber die sendung mit der maus.
>>
Albert Bagglestock - Wed, 17 Apr 2019 23:57:14 EST ID:AtxvGGY2 No.79375 Ignore Report Reply
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>>79364
>krautshit


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
File: 1438331423442.png -(547907B / 535.07KB, 451x604) Thumbnail displayed, click image for full size. 547907
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.
Comment too long. Click here to view the full text.
102 posts and 15 images omitted. Click View Thread to read.
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Fucking Lightfield - Tue, 16 Apr 2019 18:40:31 EST ID:BnGdMrEk No.79372 Ignore Report Reply
No a priori truths

Platonists go home
>>
trypto - Tue, 16 Apr 2019 22:52:23 EST ID:7PFRWMOl No.79373 Ignore Report Reply
>>79372
> No a priori truths
Is this an a priori truth?
>>
Martha Sonnerman - Wed, 17 Apr 2019 20:14:08 EST ID:QiRUncgI No.79374 Ignore Report Reply
>>79373
This is like a zoo exhibit, guys. Don't feed the positivists ontological albatrosses, they just become epiphenomenal.


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
>>79363
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
>>79369
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
>>79370
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
File: 1554023171889.jpg -(36565B / 35.71KB, 440x308) Thumbnail displayed, click image for full size. 36565
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
Comment too long. Click here to view the full text.
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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.


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
File: 1542147870232.png -(3583B / 3.50KB, 269x187) Thumbnail displayed, click image for full size. 3583
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?
8 posts omitted. Click View Thread to read.
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Sophie Grandman - Sun, 03 Mar 2019 20:11:33 EST ID:LEIFpGAY No.79314 Ignore Report Reply
>>79283
LOL, yeah the active compounds are way more bioavailable as their picrate salts!
>>
press !YxHJQHLaEk - Fri, 29 Mar 2019 15:42:36 EST ID:XqaGYEnB No.79335 Ignore Report Reply
>>79314

somebody else - pre supposed snows torm disaster- pointed out that many alkaloids form picrate salts which are poorly soluble in organic solvents, thus precipitating.

but youre right, id rather not risk exposure to carcinogens, he said while opening his second pack of the day.
>>
Henry Hocklested - Mon, 01 Apr 2019 12:53:26 EST ID:RsiLyIYo No.79342 Ignore Report Reply
>>79335

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.


Giant Robot Pilot Training Video Ignore Report View Thread Reply
Shitting Gattingworth - Sat, 30 Mar 2019 12:45:04 EST ID:QW41opDA No.79340
File: 1553964304065.jpg -(451746B / 441.16KB, 1620x842) Thumbnail displayed, click image for full size. 451746
Since my baby, the Engineering board is gone, I guess this goes here.
https://www.youtube.com/watch?v=3MCSkz7Dnrg

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
File: 1541129065535.jpg -(23597B / 23.04KB, 232x325) Thumbnail displayed, click image for full size. 23597
Maybe we should have /stem/
>>>/420/247062
4 posts and 1 images omitted. Click View Thread to read.
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press !YxHJQHLaEk - Fri, 29 Mar 2019 15:50:59 EST ID:XqaGYEnB No.79336 Ignore Report Reply
>>79334
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
>>79336
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
>>79337
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
File: 1543608658580.jpg -(344271B / 336.20KB, 1024x683) Thumbnail displayed, click image for full size. 344271
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.
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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
>>79304
Hm maybe this isn't your sci-fi blog?
>>If I were you guys Iā€™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
File: 1552720833299.jpg -(1059463B / 1.01MB, 2576x1932) Thumbnail displayed, click image for full size. 1059463
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


Drug Testing Ignore Report View Thread Reply
Edward Pickford - Sat, 02 Mar 2019 18:28:30 EST ID:pUb2iHzJ No.79313
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Is there a way to test whether my X is actually X without a reagent kit? Anything that could narrow down the possibilities is helpful
>>
Wesley Dugglewill - Wed, 13 Mar 2019 04:57:04 EST ID:EgtLYZA7 No.79318 Ignore Report Reply
>>79313
Why are you avoiding a reagent kit in the first place?
>>
Fucking Smallforth - Thu, 14 Mar 2019 16:42:47 EST ID:LAqsvRkE No.79320 Ignore Report Reply
Yes, but all are much more complicated than a reagent kit and if you can't buy or use a reagent kit you won't be able to do those. Things like melting point measurement, x-ray diffraction, GC/MS, MS/MS, HPLC/MS, IR spectroscopy, UV-VIS spectroscopy, NMR spectroscopy, conductometrics, gel-electrophoresis, etc. Just buy a fuggin reagent, or make it yourself: 4% of concentrated formaldehide, 96% of concentrated sulfuric acid. I heard in USA you can buy cc. H2SO4 as drain cleaner/declogger. Formaldehide is sold in the pharmacy. Mix it slowly while cooling, allow it to sit a few hours than drop a drop on a little piece of your X, if it turns purple it's something containing the methylenedioxy moeity, and since almost all possible drugs containing it are illegal now, why would someone bother making something like MBDB or Methylone or etc when he can make MDMA easier, cheaper and just as illegally.


Organic chemistry Ignore Report View Thread Reply
Hedda Sunkinchuck - Mon, 10 Dec 2018 01:04:36 EST ID:xqVfPx4h No.79298
File: 1544421876364.jpg -(72004B / 70.32KB, 800x512) Thumbnail displayed, click image for full size. 72004
How the fuck do they know what's happening inside of living things? Particularly with neurochemistry. You've got, let's say, a working brain. It's full of juices. You've got a science lab. How do you go about separating which juices are which and determining how they behave in the living brain?
2 posts omitted. Click View Thread to read.
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Reuben Soshfork - Wed, 06 Mar 2019 04:31:02 EST ID:A5rByIPr No.79316 Ignore Report Reply
they used of course in it
>>
Albert Pottingdock - Fri, 08 Mar 2019 02:24:52 EST ID:A5rByIPr No.79317 Ignore Report Reply
Graphene is very interesting nanomaterial for me. I heard that grapheneis widespread and used in electronic. It has next characteristics Carbon > 99, 6%, Thickness (nm): < 3.0 , MB surface area (m2/g): ~80, Density (kg/m3): 2,2, Bulk density (kg/m3): 120, Electrical resistivity (Q.cm-1): < 0.15. I think you need to find graphene in special laboratories like it http://mstnano.com/products/graphene/
>>
Archie Pidgestock - Wed, 13 Mar 2019 16:35:58 EST ID:dl9lAnzN No.79319 Ignore Report Reply
>>79298
>>How do you go about separating which juices are which and determining how they behave in the living brain?
It takes a really long time and a lot of work and most of the time you will be wrong or overly simplistic in your interpretation of what is going on. Serotonin for example was so named because they believed at first its primary function was modulating the consistency of blood serum.
For the specifics though, the way they tell which neurotransmitters affect what is by looking for ligand receptors at the synapse. The neurotransmitter works by being a 'key' for a specific molecular lock on the receiving cell, which initiates its action potential to propagate a shifting ion gradient through the dendrite. Then, they follow the trail of that neuron chain's axons until they get to something that's a muscle or sensory cluster (or backwards, to a specific region of the brain) and then end up saying something like 'these neurons are part of a pathway connecting this behavior/sensation to control from this brain region, modulated by this neurotransmitter.' If you noticed this is not much different than the room of blind men describing an elephant by grabbing different parts, grats, you've been paying attention.


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