Leave these fields empty (spam trap):
You can leave this blank to post anonymously, or you can create a Tripcode by using the format Name#Password
[i]Italic Text[/i]
[b]Bold Text[/b]
[spoiler]Spoiler Text[/spoiler]
>Highlight/Quote Text
[pre]Preformatted & Monospace Text[/pre]
[super]Superset Text[/super]
[sub]Subset Text[/sub]
1. Numbered lists become ordered lists
* Bulleted lists become unordered lists


what's that crackling noise ?

View Thread Reply
- Fri, 24 Jul 2020 04:28:52 EST Q9WLEXGw No.79921
File: 1595579332518.png -(74033B / 72.30KB, 400x400) Thumbnail displayed, click image for full size. what's that crackling noise ?


what is this crackle on his video ?
Eugene Fandale - Fri, 24 Jul 2020 16:07:22 EST smt+bfPd No.79923 Reply
first link crackle sounds like ampitude-modulated pink noise turning on and off at a rate of ~30 hz.
second link crackle seems to have some sort of hysteresis or odd harmonic distortion.
Eugene Fandale - Fri, 24 Jul 2020 17:47:48 EST smt+bfPd No.79924 Reply
hmm. on a second listen, it's probably more accurate to say the first crackle is amplitude modulated filtered white noise. and the second crackle is either aliasing or odd harmonic distortion.

Morphology of human genitalia/nether regions

View Thread Reply
- Wed, 24 Jun 2020 19:11:02 EST l5erHdJm No.79909
File: 1593040262361.jpg -(1507482B / 1.44MB, 1200x1920) Thumbnail displayed, click image for full size. Morphology of human genitalia/nether regions
I'm having a debate with a bro.

So let's say a female takes 100,000 dicks. She settles down and gets married and has a daughter. Throughout the course of her daughter's life she takes 100,000 dicks in the ass as well. She settles down and gets married and has ten daughters who are also down with this tradition and so on and so forth. Each of the ten daughters convince their girlfriends to start this tradition too let's say.

This is /stem/ related I promise
. Here goes the $100,000 question
. Would this tradition have an epigenetic impact on the "rifling," structure, and "ribbing texture" of human anuses and vaginas in a given population?

Thanks guys
Sidney Brigglegold - Tue, 30 Jun 2020 22:27:52 EST FFiTLgCF No.79910 Reply
probably nothing, i dont think having lots of sex will change your genes when you have a kid plus there is normal asshole dad over here so what r u trying to insinuate here?
Alice Chungerworth - Fri, 24 Jul 2020 11:26:26 EST wn+wI+7I No.79922 Reply
Given that they'd need to have time to settle down and produce that many kids they'd need to be taking 10-20 dicks a day in each hole. If they got injured they would fall behind, also there might be permanent damage or death. The risk of being sterile or otherwise wrecked by the time they settle down is enormous. They then need to survive 10 kids with the damage of all these dicks.

So while it would not change their genes directly. You would selectively breed for insanely durable holes.

Or more likely they'd all die.
Basil Nebblehall - Sat, 25 Jul 2020 18:12:10 EST Zg8UGTEA No.79927 Reply
theoretically, over a couple hundred thousand years it would start to favor adaptation to more durable holes because that kind of cock intake would most likely cause all sorts of issues, and most likely a stronger immune system and resistance to STD's but it would take so long for that effective evolution to happen, its really hard to say


View Thread Reply
- Sat, 25 Jul 2020 07:06:22 EST XkA+vKFv No.79925
File: 1595675182504.png -(38831B / 37.92KB, 1200x388) Thumbnail displayed, click image for full size. Neuralink
What do you guys think about Neuralink? Is it a danger to humanity? Is it actually possible to create such a product? How long until it gets into our lives? Will it finish anonymity? How to save ourselves?
Graham Mobberstedge - Sat, 25 Jul 2020 07:11:30 EST V8hk0oGM No.79926 Reply
>Is it actually possible to create such a product?
No, or at least none that we're capable of yet. It's mostly just a sockpuppet company for elon to get more stock money most likely.

Too late to study in stem field?

View Thread Reply
- Tue, 21 Jul 2020 22:33:08 EST Rkc5MSE3 No.79919
File: 1595385188660.jpg -(39969B / 39.03KB, 485x323) Thumbnail displayed, click image for full size. Too late to study in stem field?
I remember posting in 2012 when I was 25, young and invincible, and the board I was posting on was called "tesla"

I'm now 34. I had a genuine interest in engineering or at least how things work and wanted to do something in electrical engineering but I really had no idea

long story short I moved from a northern canadian shithole, back to tdot, to out of my parents house, to somewhere miserable where the rent isnt too high, and I've spent more of my days hearing voices than I've been able to program. Now all I do is make shit covers of piano songs.

I know theres some knowledge in learning how to deal with the throes of life, but I seem to be really bad at it.

Is there a chance I could pick a profession in engineering and come out employable? (I'm guessing its a hard no)
Polly Ciblingdane - Thu, 23 Jul 2020 00:44:09 EST smt+bfPd No.79920 Reply
i am an undergrad. i am not as old as you, but engineering is still very much employable, assuming you can get through the courses. just make sure to do well in school and get an internship before it ends, and you will be fine.

however, if you are interested in chemical, electrical, or nuclear engineering, i would highly recommend that you research the local labor market to see if those types of engineering jobs are in demand in your area

The male gender

View Thread Reply
- Mon, 06 Apr 2020 05:34:23 EST dn0CF5zg No.79830
File: 1586165663115.jpg -(78394B / 76.56KB, 600x684) Thumbnail displayed, click image for full size. The male gender
I tell science that maybe me as (you will acept that I'm not egotistical) some sort of adaption?! Any then maybe?
Walter Hullywell - Mon, 20 Jul 2020 12:57:45 EST Qy7cQ7oR No.79918 Reply
Female is probably the base model within the mammalia class. You can tell by the chromosomes. The Y chromosome is as i assume is a degenerated X chromosome. Basically the male sex giving off on the extended treatment for the decendents for the abilty to spray his sperm every and providing the species gene diversity.

For the birds, on the other hand, the sex seperation is rather the opposite - male has ZZ chromosome pair and the female has WZ

Hijacking Radio Broadcast

View Thread Reply
- Sun, 19 Jul 2020 00:30:35 EST cAhkoph6 No.79915
File: 1595133035025.jpg -(535383B / 522.83KB, 1100x1400) Thumbnail displayed, click image for full size. Hijacking Radio Broadcast
I'm interested in learning how to hijack an fm broadcast
Walter Hullywell - Mon, 20 Jul 2020 12:44:59 EST Qy7cQ7oR No.79917 Reply
Just pick your desired frequency/station and transmit at the loudest power possible.

You can learn how to build a transmitter from anywhere on the web

Ethanol Synthesis

View Thread Reply
- Wed, 15 Apr 2020 10:50:34 EST Df20hsai No.79841
File: 1586962234428.jpg -(12787B / 12.49KB, 1280x472) Thumbnail displayed, click image for full size. Ethanol Synthesis
How do I easily make ethanol from common/easily accessible items? Going to use it as a disinfectant (concentrating it comes later). I want to do it chemically so no yeast.
8 posts omitted. Click View Thread to read.
Albert Murdworth - Thu, 30 Apr 2020 13:28:31 EST Brp5wD14 No.79860 Reply
>Is there REALLY no way to make literally one of the simplest molecules out there without yeast?
I'm afraid no. Think about for long long alcohol has been around. If there would be some easier way, people would've figured it out by now (remember we had the prohibition and the immediate post-war era in Europe).
There are several routes you can take, all of them are very rough and not feasible in your basement:

  • Reduction of acetic acid or acetaldehyde (sodium hydride)
  • Oxidation of ethylene (oxygen + catalyst + pressure)
  • Basic hydrolysis of ethyl esters (sodium hydroxide)

You won't get around fermentation. Just ferment some paper like NileRed did and distill to 98 Vol.-%. You can quench the remaining water either by using a molecular sieve, by addition of acetic anhydride or by adding a decent amount of sodium sulfate and subsequent filtration.

You could also just try and distill vodka I guess lol
Sidney Brigglegold - Tue, 30 Jun 2020 22:51:22 EST FFiTLgCF No.79911 Reply
i was under the impression it pees out alcohol and farts out co2. Is it really yeast poop? i think its yeast pee
trypto - Sat, 04 Jul 2020 22:26:59 EST nN2cbQXL No.79913 Reply
Yeast aren't animals, so it's neither. Pee/poop is just a metaphor. Alcohol is a byproduct of their metabolism. The technical term for what alcohol is to yeast is a "metabolite" or "metabolic waste".

Pee/poop are acceptable metaphors. It's liquid, so "pee" might be a bit more true. But poop is funnier, so it's definitely recommended

Build a private driving drone?

View Thread Reply
- Mon, 01 Jun 2020 01:24:37 EST eOwF+/6Y No.79897
File: 1590989077789.jpg -(7957B / 7.77KB, 307x164) Thumbnail displayed, click image for full size. Build a private driving drone?
So the big boys have been working on this shit for years and they're getting pretty close to cracking it, but what I wanna know is can we, the average Joe Schmucks of Everytown, do it too? Let's go over what's required:
A - a vehicle
B - piloting software
C - collision avoidance
D - onboard maps of area of operation
E - ???

If we start with an RC car, use a cellphone with custom piloting app, 360° camera with object detection/recognition software interfaced with piloting app and phone-based maps (Google maps?) can this be done? Easily? Not easily? What if we added an overhead aerial drone for guidance assistance? Would that help?

Why should the big boys be the only ones that get to have delivery drones? Democratize that shit and put a drone in every driveway! Fuck you, Bezos! Now I can has drone too!

Net Zero homes

View Thread Reply
- Thu, 28 May 2020 13:08:58 EST 1Kyv+UG+ No.79893
File: 1590685738348.png -(373169B / 364.42KB, 1196x934) Thumbnail displayed, click image for full size. Net Zero homes
do you think we'll have a "net zero" home in our lifetime? A house that, once you got it all bought and set up, costs NOTHING. No electricity bills or anything.
1 posts omitted. Click View Thread to read.
ANTRUSTEDENGINEEEEEER - Wed, 24 Jun 2020 16:48:36 EST tmpDgDo/ No.79908 Reply
Clara Gagglewock - Fri, 31 Jul 2020 15:09:24 EST wn+wI+7I No.79929 Reply
Heat pumps are basically AC that can cool or heat.

As the caned engineer says, you need energy to move heat. Which means more heat.

In cooling AC is wasteful and we need to cut down the use of it, but as a heater it's actually as efficient as it gets. Gas is as good but heat pumps don't directly rely in a non renewable (and around here, Schooln controlled) source and could be run off renewables with enough energy storage or renewables and nuclear if we make sure the contractors building them don't act as you'd expect them to.

Neural experiment

View Thread Reply
- Wed, 05 Feb 2020 15:28:16 EST KskywJ2d No.79763
File: 1580934496409.jpg -(68450B / 66.85KB, 730x564) Thumbnail displayed, click image for full size. Neural experiment
If you look at this moving picture for a while

What do you experience after viewing ?
3 posts omitted. Click View Thread to read.
Priscilla Novingwater - Sat, 20 Jun 2020 22:47:03 EST 6NKw3Abc No.79906 Reply
hurt like the right side of of my brain

Complex Analysis Reading Group (Stein)

View Thread Reply
- Sat, 20 Jun 2020 14:52:16 EST rAZBH9s8 No.79902
File: 1592679136082.jpg -(14984B / 14.63KB, 262x262) Thumbnail displayed, click image for full size. Complex Analysis Reading Group (Stein)
hey guys, I'm pretty bored this summer and dont have anything to do because of the lockdown. I need to brush up on some math so I'm going to end up self studying some complex analysis (Stein's book)

If anyone would like to join in and form a reading group, we could meet up once a week over voice/text chat and discuss the content and exercises. If you're worried about timezones I'm available all day and dont mind making accommodations between North America, EU, and more.

Brain and illusions

View Thread Reply
- Fri, 10 Jan 2020 11:23:33 EST ZwEVdfrb No.79737
File: 1578673413450.jpg -(30765B / 30.04KB, 580x290) Thumbnail displayed, click image for full size. Brain and illusions
When we watch illusions https://www.youtube.com/watch?v=RgNcjak0bQU&feature=emb_logo https://www.youtube.com/watch?v=G6CiuRQHv3w&list=LL8Hl4wSKvUUL8qKlFE4P0Zg&index=2&t=35s , does your brain rearrange and adapt to the illusion, or is it the fault of our brain and its limitations ?
7 posts omitted. Click View Thread to read.
birn - Fri, 29 May 2020 14:28:39 EST AliR2rVm No.79895 Reply
0000000000 illusions doesnt dwell in any form of your auctal reali
atari for life
Edward Nicklestone - Wed, 10 Jun 2020 17:36:20 EST NlteSJoF No.79900 Reply
u dont smoke dmt ? huh.

Report Post
Please be descriptive with report notes,
this helps staff resolve issues quicker.