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Archived threads in /sci/ - Science & Math - 224. page

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Any biologists/doctors here?
I am 22 years old and suddenly I had an epileptic seizure.
My grandparents died this week and I was about to move to a new country. Is stress/tension a catalyst for this kind of condition or might it be something underlying that a longer time?
21 posts and 1 images submitted.
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May be a coincidence, may be conversion disorder.
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>>9089049
>might it be something that was underlying for a longer time?
Was what I meant to type.
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>>9089049
Never had any seizures before (even something like a bit stronger dizziness)? Are you sure it was an epilepsy episode? Maybe it was just vertigo, if so then yea it's from stress. But go see your doctor, you could have epilepsy that just never surfaced before. It is possible, but I don't believe it very much.
t. 5th year med student

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>>tfw your university is ranked 600+ in World University rankings

Pic related
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>>9088844
>tfw your university is ranked in top 20 universities in the world
Pic related
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>>9088844
>tfw university is ranked top 3 in local town rankings
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>>9088844

is that bad?

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What are /sci/entists thoughts on videogames? Are here some people who turned the back on vidya to concentrate on things that are actually productive?
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Objectively the worst way to waste your time.

Sent from my iPhone
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How far from reality are you, if you can't even fathom that there are people who do not play games?
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>>9088757

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Real talk on the "reals" edition
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>>9086149
Is it true that a believing heart is your mathematics?
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>>9076050

Continuing from last thread, how does one preform an induction proof on the 'real' numbers.
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>>9086157
Any property you would like to "prove" about the "reals" already holds if they "exist" in your system.

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We use hemoglobin and some animals use hemocyanin.

But is there a way to transport oxygen more efficiently than hemoglobin?
42 posts and 5 images submitted.
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yeah

wind
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>>9084441
yea just transfuse yourself with fetal blood every so often it has a higher affinity for O2. but adult rbc work because the lower affinity helps O2 come off easier
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>>9084441
I used to work at the lysate facility pictured in OP's image. It's located in the Delmarva peninsula.

It fucking sucked. 5:30am-1:00pm. You get one piss break and then 30 minutes for lunch. Fuck Lonza corporation. I'm so glad my current lab is chill and everyone comes in at 10.

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Discuss the superiority of the big five test over other psychopop tests like Meyer-Briggs and post your general or detailed results.

http://www.personalityassessor.com/ipip300/
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>300 questions
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>>9081228

http://www.personalityassessor.com/ipip120/

Shorter version too, if you don't want a very accurate representation of your personality.
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>>9081235
I did the 46 question version

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Have you ever failed a class in college?

If so, what class was it and why?

>tfw failed diffeq over the summer
201 posts and 17 images submitted.
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>>9078038
Diffeqs, that class was really easy when I was first learning it
(Really good prof) but has become significantly harder to relearn after forgetting it.
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I don't think it's possible to fail a college class unless you weren't trying at all.
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I have dreams on a weekly basis that I'm failing both algebra and Chinese.

I never took either class in university and in fact made the deans list every session I was there. I have no idea what's causing these dreams.

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I have a bad brain fog, like my brain has a big cotton wool blocking out my thoughts from coming out clearly.

Is it because I don't exercise? I do fap, but I don't think that's the problem. I also take coffee regularly and have really abnormal sleep pattern of 5-6 hours with additional afternoon naps.
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>>9093023
It's the effect of Drugs
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>>9093038
I've only had taken adderall when I was a kid, like 11 and dropped it at 12 when I grew out of it, now I'm 19, I don't think the withdrawal lasts that long.
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>>9093023
>>9093023
>>Is it because I don't exercise?
YES IT IS BECAUSE YOU are not enough of a normie

What would happen if one were to drink 100% pure ethanol? How much would you safely be able to drink?
13 posts and 2 images submitted.
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please don't drink Everclear, not even for science
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>>9092510
Everclear is only 96.5%
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Pretty sure it wouldnt change anything.
That being said, you're lucky if you find any pure ethanol that isn't denatured.

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Sci, help a brainlet out here. How is this converse false?

Suppose {a(n)} --> L, for some real L, and {1/(a(n)} --> 0. Then by definition of a limit of a sequence, given some e < 0, we can make {1/a(n)} < e, for n large. But e may be less than 1/L, which is a contradiction.

Help please?
19 posts and 3 images submitted.
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sqt thread.
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idk if a_n is specified to be real or not, but if it isn't explicit then a_n could approach complex infinity
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>>9092231
[math] \frac{1}{a_n} \to 0 \implies |a_n| \to \infty [/math]

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Is this the future of mankind /sci/?
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>>9091647
Nah it's the future of your moms pucci.

https://www.youtube.com/watch?v=aZHvd0ks7Es
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Who gives a fuck?
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>>9091648
https://www.youtube.com/watch?v=1s6aNjJRbrA

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Post your major and how long did it take/how difficult it was to find a job.
21 posts and 4 images submitted.
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CS

Multiple job offers before graduating
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Math

Job the day after graduation. $300k hiring bonus
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>>9091604
What is your job?

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Sup /sci/.

Sometimes when I'm bored, e.g. when commuting using public transportation, I solve sudoku puzzles (pic related) to ease my boredom.

Lately I've noticed that while I'm OK at solving the 'grotesquely hard' puzzles when I'm well-rested, I'm far, far better at solving them on a sleep deficit, to the point where they might as well be babby's first beginner puzzles. This is especially true when I've been awake for more than 24 hours.

Would anybody happen to know or have any hypotheses why this is the case? It seems pretty counter-intuitive to me.
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Do you fast during these wakefulness binges? If so, it could be related to orexins. I find that I'm much, much sharper during a period of fasting and am a tired, useless piece of shit after a meal.

https://en.wikipedia.org/wiki/Orexin-A
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Maybe your unconscious abilities are far greater than you usually allow. Every piano/tennis/whatever teacher will tell you to relax, but stay focused at the same time. Same phenomenon I think.
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when you rest you have a stupid little baby boy bitch brain, when you don't your brain gets tough

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So what kind of a partical is the partical that escapes from a black hole is it a photon, electron, a quark ?
I really want to know
14 posts and 1 images submitted.
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usually photons. this may seem unintuitive because photons have no antiparticle loosely speaking, but strictly speaking photons are their own antiparticles.
since photons have no charge to begin with, all that needs to be conserved is momentum, which is conserved as both particles move in opposite directions (one towards the singularity, one towards infinity away from the event horizon)
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Thanks
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>>9091117
So you are saying black holes aren't actually black? Just very dark.

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What if the universe is purely governed by random chance, and we have created the laws of physics based false assumptions?

Imagine I flip a coin twice, and it lands both times on heads. You might think there was a pattern. But if I flipped it a third time and it was tails, you would see your conclusions is wrong.

Humans simply have not seen enough of the universe to disprove the "laws" of physics. If they saw more of it, they would see their laws are simply not true in the long run.
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>>9091062
Randomness doesn't exist, and chaos is unknown order.
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>>9091062
Okay

Imagine you breathe in air and you live today. Imagine that happens twice. You might think there was a pattern. But if I flipped it a third time. Etc. Get it?
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>>9091064
Chaos is fundamentally unknowable order and therefor undistinguishable from randomness.
Any talk of deterministic order in chaotic systems is metaphysical, and thus for brainlets.
Chaotic systems become uncorrelated from starting conditions in finite time.

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