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Archived threads in /sci/ - Science & Math - 1568. page

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Anyone here who matriculated >25?
What's your major? How do you like it?
What did you do before uni?

I'm 27 and got into med school last year, so far it's close to the greatest thing I've ever done.
14 posts and 1 images submitted.
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>>8174477
>27
>med school
lol
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>>8174485
What did you mean by this?
>>
My mother was working on her AS in her 50s. I knew plenty of adults at CC who were getting degrees, one started at 52 I think, part-time. Uni is incredibly youngfag territory, diversity is a fucking joke.

Most adults
>worked for a while but want a degree to advance
>were in the military or something and thought something was cool
>had a child or children and one parent either has time+opportunity to study, or needs to increase revenue in the future (i.e. a full-time adult with children "shouldn't" be going to college)
My CC was very accommodating and had great teachers. (people who's job and desire was teaching and interacting with students, not research) Uni has far fewer adults, although I've met some. Usually their partner works (if they have kids), or they're single and going to uni, but getting into the huge debts, even if they're working full-time (very uncommon). More schools are offering night and online/independent courses, for some classes.

Most adults I see going to university go for business, legal, or health field. I've seen a few adults in Engineering fields, but they're still easily exceptions than a norm (Electrical Engineering, and I think we had 2-3 people over 30).

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https://www.youtube.com/watch?v=ROe28Ma_tYM

Is he right, /sci/? Is philosophy dead and done with?
20 posts and 3 images submitted.
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>>8174352
>Bill Nye
>>
advanced autism
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>>8174352
A lot of philosophical questions are dead. In the light of evolution, it is clear there is no meaning to life. It also contradicts pretty much all religion except some forms of deism. Meanwhile, evolution shows us morality is merely socially constructed or perhaps even to some extent genetic.

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If for some reason we had to replace infantry firearms with bows, would todays technology be able to make some kind of meaningful improvement to the versions historical armies used? Assume the targets would be either unarmored or use armors from pre-renaissance eras.
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>>8174286

we can shoot supersonic bolts with explosive tips
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>>8174286

a railgun is basically just a ballista with magnetic strings and electric springs.
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>>8174291
>>8174296
the implication was that you'd use string, muscle strength and inert bolts.

Albert Einstein thread.

Post questions about him; suggest books, documentaries, or any other information about him and discuss his life and work.

I have some questions I would like to ask:

1-Let us imagine that Einstein was never born. Is it possible to say that his theories would eventually bloom by the work of other minds in a period of 20-30 years? Or his insights were so unique that we cannot say for certain how much time would pass without anyone reaching them?

2-What is the best book about his life? I know the famous Isaacson one, but I guess there must be some more complete texts.

3-What do you guys think of this Eugene Wigner definition:

>“I have known a great many intelligent people in my life. I knew Max Planck (Nobel Prize 1918), von Laue (Nobel Prize 1914) and Heisenberg (Nobel Prize 1932). Paul Dirac (Nobel Prize 1933) was my brother in law; Leo Szilard and Edward Teller have been among my closest friends; and Albert Einstein was a good friend, too. But none of them had a mind as quick and acute as John von Neumann. I have often remarked this in the presence of those men and no one ever disputed me.
>… But Einstein’s understanding was deeper even than von Neumann’s. His mind was both more penetrating and more original than von Neumann’s. And that is a very remarkable statement. Einstein took an extraordinary pleasure in invention. Two of his greatest inventions are the Special and General Theories of Relativity; and for all of von Neumann’s brilliance, he never produced anything as original.
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All I want in life is to be good at math and physics. It's all that I want and I am just not good at them. It is absolutely devastating to me. Have any of you ever climbed out of this pit of never being able to do what you truly want to do?
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>>8174229
Nope
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>>8174229
If you want to be better at physics and math, the only way is by doing more physics and math. Exposing yourself to more concepts and problems is a very effective way of getting out of this rut. Good luck!
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>>8174229
Si. I realized that I was just being spoiled.

>Boohoo I don't get to do what I deem most important because I'm not gifted enough

Every small contribution counts for something, even if it is invisible to others, and maybe even to yourself. Get over yourself. There are plenty of other ways you can contribute to the world, and doing so shouldn't necessarily be what you _want_ it be or even make you feel good about yourself.

You can't always get what you want, and you need to get over that.

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How does one pass the Van Allen belt?
https://en.wikipedia.org/wiki/Van_Allen_radiation_belt

pic unrelated
14 posts and 2 images submitted.
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>>8174124
By going through it. It's not like it's a HUEG WALL OF DEATH.

For best results don't pass through it during a solar storm.
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>>8174124
Can anyone calculate how much doritos are in that tub?
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>>8174124
>not cool ranch

ugh

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Why are people so illiterate when it comes to science and how do we stop this?
44 posts and 5 images submitted.
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There's a fundamental flaw in humans.

The only cure for this flaw is a total destruction.
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>>8174122
Welfare requiring irreversible sterilisation would do the trick in five to ten generations.
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>>8174122
yeah this is pretty sad, not surprising but sad

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help sci

For two days now my ringfinger and pinky are numb, start with a stinging under my shoulderblade going down my arm it becomes a tingling sensation.

I tried sleeping on my back, getting exercise, stretching the fuck out of my back but it seemed to only make it worse :(

what do I do now, I have to wait 12 days for my doctors appointment but it gets worse every day!
18 posts and 1 images submitted.
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>>8174089
Learn how to use a question mark?
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>>8174091
im typing with one hand and its urgent.
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>>8174089
Sign of diabetes or imminent heart attack

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ITT: We discuss the application of neurobiology in improving martial arts offensive and defensive capabilities.

My first topic is: Could you cause cardiac arrest by stimulating the vagus nerve, sending them into vasovagal syncope, whilst rapidly striking the cardiac muscle itself?
15 posts and 3 images submitted.
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>>8174061
>Could you cause cardiac arrest by stimulating the vagus nerve
Yes, and it's nothing new. Some judō choking techniques do just that.
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>>8174061

You can cause a heart attack by just punching someone in the chest at the right time.
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>>8174074
Seems a bit like overkill, considering they're already probably entering syncope, which normally results in unconsciousness. Do you agree?

Can magnets bend light rays?
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>>8173941
No. While they are electromagnetic phenomena, light waves themselves have neither electrical charge nor a magnetic moment.

In other words, light rays pass through (static) electromagnetic fields just fine without interference.
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>>8173941
They can however rotate the polarisation axis of say linearly polarized EM waves.
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>>8174010
Faraday rotation.

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Am I the only one who gets mad as fuck when observing this world?

There are jews that make at least $100k a month from stupid HTML websites by charging $10k to people.

There are mathematicians/engineers/physicians that work hard to make world the better place and discover new stuff, they dont care about stupid yachts or big houses

There are idiots that make billions of dollars from simple shit like selling food, making minecraft (LOL)

So my question /sci/ is : Is money high score of dumb people?
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>>8173909
> Is money high score of smart people?
Its nobody's fault that you grew up not knowing basing money working.
It should be rudimentary subject in primary and high school instead we are teaching kids how many sheep Australia has.
I am only realizing this at age of 25 and I deeply regret not giving interest in economy at a younger age.
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>>8173953
>basic*
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>>8173953
So basically, if we let go of our desire to know more, we will get rich because there will be other idiots willing to spend hours learning something new just so that we can collect all the cash while he still gets paid his regular monthly salary?

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What kind of bodily reaction makes sneezing feel so strongly euphoric? Is it strictly a local reaction in the nasal area or does it also involve the release of certain neurotransmitters in the brain?
To me sneezing is so rewarding that I often manually induce it by stimulating the nostrils with a piece of toilet paper with the corner rolled up into a thin spike. What makes it so rewarding that I would want to continue sneezing repeatedly as long as I can?
Also, does it provide health benefits to sneeze manually every day? It releases tons of snot so this can be only positive, right?
14 posts and 2 images submitted.
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Please answer.
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Surely this has been studied extensively?
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Tension/ release. It fulfills an urge. Holding your piss all day and taking a massive piss doesn't feel good, it feels good relative to the intense urge of having to piss.

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Why do we find furry things cute?
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>>8173840
I don't, some are, some are not.
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Because they have features similiar to babies.
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>>8173840
Social constructs.

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Who is the guy on the cover?
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>>8173816
Some nerd.
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gaub
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>>8173854
Gauss, thanks.

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Why there is no flow of electrons if i connect the positive terminal of a battery to the ground/PE (protective earth) of the mains?
17 posts and 2 images submitted.
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>>8173794

you have an open circuit

earth ground is just a zero reference (and return path) for AC power distribution systems.
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>>8173803
Would'n there be enough free electrons in the ground/earth that a few of them would move to the positive terminal of the battery where is an abcence of electrons?
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Maybe they do.

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