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Why is this the case?

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- Thu, 25 Apr 2019 01:23:27 EST bUpRMfRf No.79388
File: 1556169807858.jpg -(63514B / 62.03KB, 700x538) Thumbnail displayed, click image for full size. Why is this the case?
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?
11 posts and 2 images omitted. Click View Thread to read.
Betsy Boddleshaw - Fri, 03 May 2019 16:45:56 EST QiRUncgI No.79410 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 fBrSG5+b No.79416 Reply
1557408968273.jpg -(106274B / 103.78KB, 786x1017) Thumbnail displayed, click image for full size.

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.
!scyTheNg3k - Thu, 30 May 2019 18:10:02 EST +fcpEO88 No.79430 Reply
the proof was given correctly above but the dude used latin for some reason.

sine is the ratio between opposite side and hypotenuse. sin(x) = O/H
cosine is the ratio between adjacent side and hypotenuse. cos(x) = A/H

pythagorean theorem: (adjacent side)^2 + (opposite side)^2 = (hypotenuse)^2
O^2 + A^2 = H^2
divide both sides by H^2
O^2/H^2 + A^2/H^2 = 1
(O/H)^2 + (A/H)^2 = 1
by definition
sin(x)^2 + cos(x)^2 = 1

Time warp

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!cyBOrG7t12 - Wed, 20 Feb 2019 17:56:06 EST 2VxE8R8t No.79306
File: 1550703366347.jpg -(18839B / 18.40KB, 324x418) Thumbnail displayed, click image for full size. Time warp
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 Jyqi6ep7 No.79369 Reply
You could be on to something. How do we test this?
press - Mon, 15 Apr 2019 16:24:42 EST kphkeya5 No.79370 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 j9C4BMRh No.79371 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

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- Sun, 31 Mar 2019 05:06:11 EST U39B6FlA No.79341
File: 1554023171889.jpg -(36565B / 35.71KB, 440x308) Thumbnail displayed, click image for full size. Long time 420..er but not /chem/ person
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 QiRUncgI No.79343 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.


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- Thu, 01 Nov 2018 23:24:25 EST wkZjcyRQ No.79273
File: 1541129065535.jpg -(23597B / 23.04KB, 232x325) Thumbnail displayed, click image for full size. /STEM/
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 XqaGYEnB No.79336 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
press !//CEObOMBY - Sat, 30 Mar 2019 12:23:50 EST Xcif41Xj No.79339 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

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- Fri, 30 Nov 2018 15:10:58 EST GtE/9ebI No.79290
File: 1543608658580.jpg -(344271B / 336.20KB, 1024x683) Thumbnail displayed, click image for full size. past time travel
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 RVtEPlUX No.79322 Reply
recently i read interesting aticle about time traveling
Nicholas Goodlock - Sat, 16 Mar 2019 17:51:41 EST dl9lAnzN No.79323 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 8P8c+L33 No.79332 Reply
Hopefully something with portals, that would be dope.

Drug Testing

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- Sat, 02 Mar 2019 18:28:30 EST pUb2iHzJ No.79313
File: 1551569310684.png -(127855B / 124.86KB, 1345x2392) Thumbnail displayed, click image for full size. Drug Testing
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 EgtLYZA7 No.79318 Reply
Why are you avoiding a reagent kit in the first place?
Fucking Smallforth - Thu, 14 Mar 2019 16:42:47 EST LAqsvRkE No.79320 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.

Candyflip creation

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- Sun, 28 May 2017 22:51:16 EST eE+IWTWR No.78666
File: 1496026276961.jpg -(532507B / 520.03KB, 1507x1270) Thumbnail displayed, click image for full size. Candyflip creation
I'm looking to start small-scale creation of mdma and lsd. I've got next to no chem. knowledge, and no lab setup yet.

Got any recommendations for reading? Uncle fester and schulgin are the only ones i know of and both are above my pay grade.
What glassware is required? Recommended?
Any recommended materials sources?

29 posts and 5 images omitted. Click View Thread to read.
Martin Worthingshaw - Tue, 11 Dec 2018 04:20:58 EST H2dReURr No.79302 Reply
Those books are pretty old and a lot of the ingredients lists have either been put on lists or simply become less available/more expensive due to normal market reasons, such as decreased demand and production and industry standards leading to different choices. It's quite possible that where OP is, the specified list of requirements could be 10x what he actually needs for the synth.
Jack Blepperlure - Wed, 12 Dec 2018 18:23:16 EST X7AWx7pQ No.79303 Reply
Follow your dreams I need at least 15,000 barrels
Polly Goodbanks - Fri, 01 Mar 2019 06:06:24 EST zrV5jqLv No.79312 Reply
OP, first place to start is to understand 'unknown unknowns'.

Why don't they just build reactors deep underground?

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- Sun, 21 Oct 2018 09:48:58 EST OuVlsNVB No.79259
File: 1540129738526.jpg -(34374B / 33.57KB, 267x345) Thumbnail displayed, click image for full size. Why don't they just build reactors deep underground?
Maybe this is a dumb question. But I'm going on my annual wikipedia dive on nuclear disasters.

If they built all of these like 500m below the surface and covered in heavy rocks or concrete/steel wouldn't most of the effects of a total melt down be contained by the ground?

It seems like the worst part of a subterainian melt down vs one on the surface is there is probably a mini earth quake in the area.
But in my mind it seems most of the fallout and radiation would be contained, you only have to worry about ejected materials and chuncks i suppose?/
And as long as your reactor isnt near any fault lines i dont see any real danger.

Also after a melt down it seems itwould be much easier to fix the problem if its in a giant hole in the ground vs sitting in the middle of a Schooln village.

IDK, educate me internet.
11 posts omitted. Click View Thread to read.
Doris Chittingford - Wed, 14 Nov 2018 00:40:43 EST dl9lAnzN No.79276 Reply
>>Why isn't it used everywhere?
It's a more advanced technology that isn't as fully developed, so everything about it costs more. And, even if it were at the same economy of scale, an individual unit of fuel costs more, since it must be transmuted from thorium to uranium first. The only savings are in safety and waste concerns, and those are long term costs which people like to ignore in favor of short term ones.
James Randi - Fri, 30 Nov 2018 07:03:01 EST OuVlsNVB No.79289 Reply
This is just my understanding, I could be wrong. It seems mainly because were stuck with the old reactors because they cost so much to build that we more or less have to use the old ones for a long time until they've paid for them selves or outlived their usefullness or economic sustainability.

Then also the whole industry is standardized around the old technology. So to switch to a new one would be like a major format shift that the entire industry would need to adapt to, and it just costs too much money.
Also you would need to train a whole new generation of nuclear power plant operators on a new type of reacor. Where I imagine that most of the work is still on old reactors, why train for the new ones?
Lydia Bunfuck - Thu, 06 Dec 2018 03:29:38 EST 96grgyjN No.79294 Reply
Power generation can't occur solely in one specific place. It's decentralized for a reason: power transmission is not an efficient process over massive amounts of distance. It's the same reason the old "why don't we just build massive solar arrays in the Sahara to power the world" trick won't work. It's not enough to generate the power, you have to wire it to the locations that consume power. Resistance, even for highly efficient conductors like copper wire, plays a big role in determining the power grid and its constituents.
>inb4 someone wanks over wireless power transmission/tesla

alternative chloral hydrate synthesis

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- Sun, 25 Nov 2018 08:07:04 EST P3Ub+nJg No.79285
File: 1543151224177.png -(19806B / 19.34KB, 1109x571) Thumbnail displayed, click image for full size. alternative chloral hydrate synthesis
so i was thinking of making some chloral hydrate but i would prefer to avoid fucking with chlorine gas then i had this idea basically use the same same method as for chobutanol but replacing the acetone with formaldehyde then either just use the tricholroethanol as is or oxidize it with probably dichromate and sulphuric acid to chloral. dose anyone know a reason why the reaction used to make chloral hydrate would not work with an aldehyde as well as it whould work with a ketone?

Your recommended method of extracting DMT?

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- Sat, 18 Aug 2018 10:13:51 EST Udk0Y39+ No.79204
File: 1534601631648.png -(365367B / 356.80KB, 602x452) Thumbnail displayed, click image for full size. Your recommended method of extracting DMT?
I was looking up how to extract DMT and apparently it's most commonly done with Mimosa Hostilis root bark. Looking at the guides it's very MacGyver tier. I'm saying I'm wondering if there is a more professional way of doing it. Essentially I'm asking, if you ever looked into extracting DMT and if you have the chemistry background, what methods of extraction do you prefer/recommend and do you have any advice regarding it? Perhaps a mistake that commonly diminishes the quality of the extraction or some deviation from the existing guides to end up with something more pure.
2 posts omitted. Click View Thread to read.
puress - Fri, 12 Oct 2018 13:48:21 EST bibGzGaZ No.79243 Reply
TLC is most often distribution chromatography ( with a smidgeon of absorption chromatography) , meaning its more about polarity of the substances than about their weight itself (though there often is an indirect relation between weight to affinity). you basically have a solvation hull on your substrate and the mobile phase flows above that, depending on the polarity of a substance it moves between the stationary and the mobile phase, thus seperating from other substances. ive made a nice animation for that shit but im too paranoid, ill see if i find a comparable animation

in theory you should get one band per compound of your mixture but high concentrations or an unsuitable eluent may lead to streaking and improper seperation depending on the number of theoretical seperation stages.

in the OP scenario TLC would only serve as an analytic tool, even column chromatography couldnt really yield a lot of DMT doses

youd be seperating by molecular weight if the different compounds had no intrinsic dipoles. i used to hate chromatography since its such a bitch ass compromising bullshit way of seperation... wait theyre all based on equilibrium
purrbastus - Sat, 20 Oct 2018 04:31:22 EST L5efXmCV No.79256 Reply
you can do TLC on a large enough plate after plating it on glass and then chisel the silica or alumina off it to extract it back out

you can do that up to like 2g of a sample depending how many silica coats you do and how patient you are. works for analytic and organic chemistry. definitely not for others. but then again, if you're operating with fucking oxymorphone or dmt or cocaine for personal usage, this may be viable.
pupress - Thu, 25 Oct 2018 16:21:28 EST KFcL1XHa No.79269 Reply
put my gold fish into the bath tub so that the aquarium is free to serve as a tlc chamber

bright star tek questions

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- Thu, 13 Sep 2018 13:45:15 EST HJwBSxjU No.79229
File: 1536860715304.gif -(1043B / 1.02KB, 512x73) Thumbnail displayed, click image for full size. bright star tek questions
One is left with impure methylamine. The stuff includes ammonia chloride.
Is this fine? Is one to assume that when using the adulterated methylamine in later reaction that the ammonia chloride wont matter?

Step 3 says to "flood the reaction contents with 1.5 L of slightly acidic water"
Mix in what container? Largest container called for is 1000ml RBF

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