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Archived threads in /sci/ - Science & Math - 2179. page

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I'm studying CompSci and I'm pretty good at it.

However, I hate it.

I think science is extremely important, but I hate /sci/, I hate engineering. Is there hope for me, or should I bail? I love music and art but that won't pay the bills.
14 posts and 4 images submitted.
>>
What part of science do you love?

A huge part of being a scientist is writing tedious scientific reports and begging for funding
>>
>>7639003
I can't think of anything I like about science at the moment. I've been burned the fuck out by science. It has it's moments, but I never go on /sci/ besides for stuff like this. I don't give a fuck about "science literature" or tv shows or anything like that. I don't spend my free time studying cosmology.

And just to clear things up, most people who study CompSci in Uni go into software engineering. I'm not really looking at going into Academia (and not that I'm interested in working in indstry either).
>>
>>7639014
Then why would you do science? There's money in other areas too (finance/biz/skilled tradesman)

Tbh, most Compsci guys go into programming which is pretty different from what a scientist/ engineer would do. If you like programming stick with it

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good luck anon, it's only basic algebra!
15 posts and 1 images submitted.
>>
>good luck solving my math homework, anon
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>>7638961
what kind of shitty teacher gives this type of problem out
>>
Just use Wolfram Alpha theorem

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Going through addition mechanisms of alkenes, and I've run into a stumper. I am wondering why bromination (which is normally an anti addition) of trans-anethole can sometimes produce minor amounts of syn addition, whereas cinnamic acid and trans-stilbene can not. All three of these molecules have resonance stability due to their phenyl groups. I cant see why trans-anethole would be favored for a syn rxn. Plz halp.
19 posts and 2 images submitted.
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Shameless bump #1
>>
>>7638893
>can sometimes produce minor amounts of syn addition
Who told you it does?
>>
It's directly from the lab report questionnaire. I also have seen it mentioned online, and explained inadequately.

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What went wrong?
14 posts and 1 images submitted.
>>
>>7638843
>>7638843
the first woman in space
>>
We didn't fund it.
>>
>>7638843
The transformation of economics from a science to a religion.

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Hey /sci/, I'm thinking about changing my major to physics and go on to grad school to get a Ph.D. What kind of jobs would I be able to get with a Ph.D. in physics?
23 posts and 2 images submitted.
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Breast Animator at Kojima productions.
>>
>>7638813
Sign me up!
>>
Whatever will give you prestige and status in the world, go for it.

But you'll probably just teach

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what's the best way to self-study? when i'm reading the cs/math books everything makes sense, but i can't seem to REALLY grasp the underlying principles and really move deeper. I'd hate to ask people questions and getting my hands held every couple pages just to double-check if i'm on the right track. am i just dumb? how do ya'll study and learn new concepts/theories? t-thx
11 posts and 1 images submitted.
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>>7638749
just smoke some weed
>>
>>7638749
That's a bit vague.
Anyway, after you have finished reading something, you can try solving the exercises at the end of the chapter. It can actually makes you deepen your understanding. Doing exercises is what you should have done anyway.
If you are not used to reading, then for most of the time, your thinking process will be really skewed and limited. There are things that can be seen only when you do exercise (i.e. work you brain more than reading).
>>
>>7638800

Study high
Take test high
Get high scores

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What do the Blacks think of Black Science Man?
14 posts and 3 images submitted.
>>
Interested not interested senpai
>>
>>7638683

As a black person who is relatively involved in academics, I'm not impressed. He's a "pop-sci" figure. He doesn't actually make discoveries or create anything novel; he just reads and parrots.
>>
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The physicist whose life goal is to build a time machine to reconnect with his deceased father is way more inspiring

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Hey /sci/, got a n00b math/signals question:

If I have a simple signal sin(x), I can convert a sample taken at some point (x,y) on that signal to a complex number by using Euler's formula. e.g. the point (pi/2, 1) on the sine curve becomes complex number 0 + 1i on the unit circle in the complex plane.

What if the signal is not a simple sin(x), but is some arbitrary non-periodic signal? How do you convert an (x,y) sample into a complex number?
11 posts and 2 images submitted.
>>
>>7638652
Pretty sure about this, but not completely. With your notation, a point (a, b) would become
b * e ^ a*i
= b (cos(a) + i * sin(a))
so in your example,
(pi/2, 1) => 1 * e ^ (pi * i / 2)
= cos(pi/2) + i * sin(pi/2)
= i
= 0 + 1i
for a general function f, its representation at a point x is given from applying the above formula to (x, f(x)).
(x, f(x))->f(x) * e ^ x * i
= f(x)(cos(x) + i * sin(x))
>>
>>7638665

thx. what's the reasoning for multiplying by b (or by f(x) in the last example)?
>>
>>7638685
That's the part that was making me not completely sure. It's a system consistent with the example you gave, but I'm not sure it's correct.
I'm thinking that f(x) will be the magnitude of the complex vector and x will be the vector's angle.

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Is Thorium just a meme?
406 posts and 35 images submitted.
>>
>>7638452
No, it's also an element.
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>>7638452
Yep just like the EM drive.
>>
Nope, it's a viable alternative to uranium/plutonium plants. The only reason that it's not as popular is that building a nuclear power plant costs a lot of money and the companies building them need huge subsidies from the government to start. And the politicians don't want their names to be associated with nuclear because it makes them unpopular.

Yup, the hippies ruined this for us.

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So what Erdos number does /sci/ have?

Mine's 24
18 posts and 2 images submitted.
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>>7638432
0. People think I died but I just forgot to take my amphetamines.
>>
Prof at my school I aaaaaaaaaalmost published with has erdos number 2.

I'm still fucking pissed that never panned out.
>>
>>7638438
it's alright, erdos number over time is a decreasing function anyways now that the great air dish is dead

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How do I make one of these at home. No, I'm not mentally handicapped. I'm simply bored.
26 posts and 2 images submitted.
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>>7638364
Bump for interest. I also want to know if it's worth it to go into amateur EM drive research
>>
>>7638364
>>7638397

hundreds/thousands of dollars worth of parts.
>>
>>7638422
>microwave parts
>thousands of dollars

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Would something as this be treatable? Will the doctors have to involve surgery to align all the bones into correct position after which they fix it, or is it done in some other manner?
89 posts and 13 images submitted.
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>>7638310
It's very hard for a double fracture to ever heal completely. that pic looks like leaves. what do you think?
>>
>>7638321
I don't know, hence why I am asking. Just wondering if something like this is possible to fix without amputation.
>>
That would not be treatable; amputation is a must.
Our regenerative capabilities are limited.

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If you where to go in an elevator step on a scale and go down you would "weight less" Because of the normal force being reduced.

Is this because since force is mass times acceleration and when you go down you accelerate downward therefor cancelling out the normal force? Also what if you stopped accelerating and went at a negative velocity (Downward) would the normal force already be cancelled out from before and not come back?Also what if you where to move faster than gravity (-9.81) would you experience a "negative normal force" or like complete cancellation of normal force and a new force pushing you upward?

Am I at least close?
11 posts and 1 images submitted.
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>>7638219
>stopped accelerating and went at a "negative" (Downward) constant velocity ***
>>
wtf
you would just free fall
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>>7638219
draw a goddamn FBD like they do in high school

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If I shine a flashlight into a handheld mirror, obviously the light bouncing off the mirror is moving at the speed of light. Now if I give the mirror a quick snap of the wrist, I've just increased its speed beyond that of light to Light + the Speed of Wrist Snap. And I didn't achieve infinite mass or anything. Conclusion: faster than light travel is possible.

QED
13 posts and 2 images submitted.
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>>7638211
Are you trying to push light with your mirror? Because that's called blue-shifting.
>>
>>7638211
snapping the wrist what way?
if you are trying to impart the force onto the light which you can't do then you are an idiot.
>>
No, the information has changed, not the path of photons

You know how mankind has always been stopped by the fact that the fastest speed communication can be achieved is the speed of light, right?

Well, what if a I was on one planet, and someone else was on another planet 1 light year away.

I have a giant 1 light year metal rod that I push back and forward to send signals to him.

Faster than light communication achieved.

I think I'll enjoy my Nobel Prize now.
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>>7638185

Are you the same person making this thread every day?
>>
You're literally watching VSauce right now.
>>
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