Archived threads in /sci/ - Science & Math - 190. page
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>attempt to brominate things using liquid bromine
>take ampule
>fail to realize that the glass wasn't scored
>hit the end with a hammer
>entire vial shatters and sends liquid bromine everywhere
>>8024559
that sucks
I accidentally condensed liquid oxygen in the trap between the line and the pump once.
I slammed the hood shut right before it vaporized.
Got lucky, the trap didn't shatter, the two pieces separated at the joint.
>>8024563
The danger of liquid oxygen is that it is a very good oxidizing agent. If you condense any organic stuff into the trap, it will be oxidized and this can release a lot of heat and ultimately lead to an explosion.
>>8024614
yeah, and?
if you remove the cooling agent (ie the dewar that was used to cool the trap) it goes from liquid to vapor rapidly, expanding in volume
What is "nothing" ?
>>8036449
ur mom's honesty
My life prospects.
The amount of pussy I'm getting.
I just started trying to learn Haskell using GHCi as my compiler. How do I enable syntax highlighting?
There are tutorials on the web but they are far too complicated for me who has no programming experience.
>>8032038
Your compiler is GHC, GHCi is an interactive environment to load and execute haskell code (primarily used for debugging and to help understand your code).
If you want to have syntax highlighting within ghci, I don't think that's possible.
If you just want haskell syntax highlighting in your text editor, it depends on your text editor how you do that. Most good ones do that by default though
>>8032044
Thanks for the answer.
I am using Notepad++ as a text editor which fortunately does have syntax highlighting.
Apparently, highlighting within ghci is possible, see http://learnyouahaskell.com/starting-out
Do you think it's necessary to get a good grasp of the language?
how big of a deal is GPA as a Computer Science major? Specifically in elective or non-major related courses? Accounting has just fucked my shit up.
What kind of arsenal will be more efficient and in use in the future ? Can we expect portable lasers, gauss rifles and standard issue infiltrator drones in a couple of years ?
>>8040951
I wrote a big reply but 4chan ate it, so fuck it. We already have pretty much everything for modern warfare right now. It just needs refining and mass production. Drone platforms are certainly the answer.
>>8040951
The same arsenal of today, singularitycuck.
>>8040972
...goddamnit i know that feeling man...
We know what DNA is, we know how genetics work. Why is eugenics vilified? Why is seeking the optimal outcome bad?
All morals and ethics aside, could humans be selectively bred to create a better quality of human?
>>8036543
>we know how genetics work
no we don't.
Homogenizing the gene pool is the best way to end the human race.
>>8036543
Yes
But we don't have a sufficient understanding of genetics, it's easy to lose scientific basis for classification of desirable traits, artificial selection can lead to selecting for detrimental traits that may not show in one person but could be devastating down the line, we don't know how the environment may change, etc. Basically, we don't know enough.
I'm talking about soft eugenics btw, hard eugenics is for edgelords.
And, for the actual logistics, how to carry out soft...
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>>8036543
Most people think of forced-eugenics where populations determined to be suboptimal can be sterilized and the optimal breeders are treated like cattle and forced to fuck and be fuck for ideal parameters, pretty dystopian.
Then you have genetic engineering of embryos, which is fine, but you have a few outcomes here. Two of concern: you create subhumans for slavery, or you create an organism that surpasses humanity. The first one is more realistic, and more concerning to an extent. The second one is disturbing...
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Let's talk about it. Studies have shown that dietary cholesterol does not affect serum cholesterol levels and that the consumption of saturated fat does not increase the incidence of heart disease. Furthermore, low-carb, high-fat diets have been shown to decrease the incidence of diabetes, heart disease and all-cause mortality, whereas high-carb, low-fat diets have been shown to have the opposite effect.
Thus, bacon and eggs are healthier than potatoes and pasta.
Discuss.
Dying is a side effect of Living
Discuss.
>>8039686
no
just no
get an education in nutrition
and when I say nutrition I mean nutrition, saturated fat and dietary cholesterol does not an education make
>>8039686
>Studies have shown that dietary cholesterol does not affect serum cholesterol levels and that the consumption of saturated fat does not increase the incidence of heart disease.
>Thus, bacon and eggs are healthier than potatoes and pasta.
look up fallacy of composition/hasty generalization and come back to us
1. Post your major and why you originally chose it. Don't be shy or sugarcoat your reasoning. Post the true reason, however silly, malicious, or elitist it was.
2. What do you like and dislike about it? What surprised you? Was it what you thought it was going to be?
3. Are you happy in regards to your choice?
4. If you could go back and choose something else, would you and if so, what would that be and why?
5. Would you consider yourself to be a confident, or depressed and hopeless/lost individual? Do you have goals that you want to reach? Are...
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>>8039366
1. Computer Science / Mathematics double major
2.
CS: Like: Algorithmy courses, graph theory courses, general problem solving. Dislike: Courses that had a high fact:problem solving ratio. (ie computer architecture, etc)
Math: Like: Graph theory courses, Algebra courses. General open-ended problem solving. Dislike: Differential equations courses (or at least how they're taught, basically most of the class was engineers) and other related courses in 1st year and kinda 2nd year where problems...
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1. electrical engineering. Chosen because mostly I really liked math, and it was my best subject. the curriculum material all sounded really interesting to me and I always had an interest in how electronics worked. The job market thing swayed me a lot too.
2. Dislike: the mountain of work that comes every semester and all the time I spend playing catchup. It's killer.
Biggest surprise: Probly the fact that getting a job with an engineering degree isn't automatic like every one says, and you have to suck dick all throughout undergrad for internships,...
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>>8039525
I know your feel. Was in Electrical Engineering and hated the amount of work. Now I'm in software eng and it's 10x less work. Getting a job is easier as well.
Is this real? I'm very skeptical about hits being real. /sci/'s thoughts?
https://www.youtube.com/watch?v=soxxPyaAT1k
Yes, it's basically a very dangerous GEV.
>>8036691
It's totally legit. I am a fan of Colinfurze, he does a lot of propulsion based stuff like this. Modern two-stroke engines weighing 20 kg can put out over 50 horsepower so a pair can easily lift a person off of the ground. Despite what everyone thinks the reason why personal flying machines don't exist isn't because our engines aren't good enough but rather for reasons of control. As you can see he simply hasn't bothered with control, I presume he just tuned the throttles to match and hoped they stayed that way for the whole flight. No control surfaces either, just shift around weight. So in short it's not as spectacular as it looks, anyone can do this with a big enough prop and fancy Japanese two-stroke engines, it's the control that's the problem. Colinfurze is a joker, check out his homemade turbojet videos. What I really like about this dude is that despite being a plumber with zero engineering training everything he builds werks. Note that there was an official company trying to create a marketable hoverbike of similar design and that didn't even get off of the ground.
There's no reason it couldn't be real.
As >>8036732 points out, it doesn't rise out of ground effect. It's closer to an inefficient hovercraft than a helicopter.
He also only ever flies it briefly, and never really has it under control.
It's possible for it to be fake, but it's also entirely possible for it to be real.
Best Books that made you appreciate a field or course? Mine has to be Kline's Calculus An intuitive and Physical Approach, made me completely see what goes on behind the math and ironically got me more into pure math with intuition.
I know I'm gonna get shit for this, but
Rudin's Principles of Mathematical Analysis.
Fucking opened my eyes up to analysis and I practically memorized the damn thing.
>inb4 stop memeing
Really.
Also:
Artin's "Algebra" was 10/10 simple and well-made introduction to abstract algebra
And Munkres' "Topology".
>>8035403
Sauer - Numerical Analysis - showed how real math is done i the real world on a computer/
>>8035403
stop memeing with rudin
the rest are top notch tho
makes me really suspect you haven't read any of them and just posted the usual meme suggestions, because all three are very famous online
"did u know that sugar and heroin light up the same part of the brain? That's why it's so addicting!!!"
"Entropy is a measure of disorder"
"Designer babies are coming!!!11!"
>GMOs are dangerous
Searched the archive, looks like no one talked about this question recently.
>>8037201
Yes. Hair will grow on your hands and your eye sight will drop significantly.
>>8037209
Ugh. I'm not a cunt who's afraid of those myths & bedtime stories. I've read a bit on the subject.
There were some people discussing once that masturbation from imagination is better than masturbation from porn for your health.
I wanted to read /sci/'s take on matters like that.
Because those people were on /fit/, so the conversation slowly drifted into faggotry as it went along & I never saw any solid proof on their claims then.
>>8037219
>Because those people were on /fit/
>/fit/
I'm sure it had some vague assertions about muh test, ignore 99% of everything you read on /fit/.
Can two towers really have made these planes collapse?
very carefully
>>8035255
15 years later and I still don't know what to believe. A fucking plane and a little fire took down the world trade center? and it collapsed in like 10 seconds or something like that!
but at the same time... there is no way something like this could be covered up.
>>8035255
Yes. Long story short, get metal hot enough and it becomes putty. Mix that with the force of a plane impacting a building and there's more then enough energy to take a building down.
