Archived threads in /sci/ - Science & Math - 1569. page

>>8173715

Polio.

Nearly erradicated until the vaccine scare in Nigeria.

>>8173757
Pakistan is a bitch about it too.

>>8173715
The one that triggered millions of kids to develop something known as autism.

>>8173706
well?

why does Google exist ?

>>8173706

>What is a precise definition of entropy?

It's a measure of disorder. The higher the entropy, the more disorder in your system. Suppose you have an ideal crystal that can be displayed with three base vectors and one translation vector. You could scale up the crystal as much as you want in an ideal crystal, all points or "nodes" have always the same distance to each other. Here entropy is zero. Now go into the real world, where the positions of those nodes vary: you have "chaos", entropy increases.

>What is a precise definition of information?

Depends. CS people will say something different than physicists. Usually information is a coordinate. Where is a point? How does it move? Everything is essentially a problem of geometry.

>Why does entropy increase with time?

Suppose you have a closed system with two different gases. Both different gases have different temperatures. According to the 0th axiom of thermodynamics those gases will try to get into a thermodynamic equilibrium, meaning both must have the exact same temperature or energy. In a closed system this can never happen and particles will get more and more disordered as time passes.

>Why cant we remember the future?

?

Pretty sure it's a Riemann sphere

>>8173703
this
[th is]
pronoun, plural these [th eez] (Show IPA)
1. (used to indicate a person, thing, idea, state, event, time, remark, etc., as present, near, just mentioned or pointed out, supposed to be understood, or by way of emphasis):
"This is my coat."

>>8173735

while this is pretty much /thread, does anyone else wonder what
's gonna happen if we crawl through definition of the english word? Like how long does it take before you end up in a loop or what word will reach the most word the quickest.

What do you mean "logic and everything"? Have you taken a course in discrete mathematics yet?

>>8173456
Read Lang's Basic Mathematics

>>8173466
Will do

>>8173464
No. And rather I meant that the logic behind the math doesn't bother me as much as how complicated it looks, amd I frequently give up on projects

>>8173441
http://www.mathworks.com/products/matlab/

>>8173441
https://kat.cr/mathworks-matlab-r2016a-linux-x64-t12451480.html

>>8173441

Maybe try Octave if you're using ubuntu.

Why a man? That's misandrist.

>>8173135
A very small number, mostly poor, considering how boring said breakfast appears to be. I'm not saying it's bad, but it's not hard to make or find cheap.

>>8173135
>>>/trash/

suck it up

suck it up

although, non calculus based? what the FUCK is that? even calculus based is babby shit, measure theory based is where it's at

>>8173120
Histograms, Standard Deviation, Z-Values, Probability, etc.

It's pretty fucking boring to be honest.

I was curious as to what study methods you all use for classes you don't care about and what you all use for your source of motivation?

>>8173005
Forty millimeters.
Yes.

>>8173008
That sounds like it might be a nuclear battery, not a reactor...

>>8173012
Since you seem to have a size in mind and 40mm is as small as we can get. Go up from that until you hit your smallest size possible that you still consider a reactor.

>>8172944
Because I can do what I want without dealing with all the bullshit of running my own business.

working under someone is less responsibility, less risk

>>8172956
This, but I'd like to add that owning a business takes too much time and can limit the learning capacity of a person.

We can perform a Lorenz transformation which means it is rational.

We can spin relative to space itself without any other need for a reference frame which means it exists absolutely.

File: C__Data_Users_DefApps_AppData_INTERNETEXPLORER_Temp_Saved Images_6419365_orig.jpg (25KB, 486x292px) Image search: [Google]

25KB, 486x292px

>>8172984
>We can spin relative to space itself without any other need for a reference frame which means it exists absolutely.

I've come to understand that this is still out there.

"In physics, the concept of absolute rotation--is a topic of debate..." -https://en.wikipedia.org/wiki/Absolute_rotation

"Alternatively, these experiments provide an operational definition of what is meant by "absolute rotation", and do not pretend to address the question of "rotation relative to what?"." -https://en.wikipedia.org/wiki/Rotating_spheres

>>8173211

General relativity gives strong evidence that space must exist absolutely. Gravitational waves demonstrate that space can behave like a medium. There's also the idea of curving space. If space can curve then it must exist absolutely in order to have shape.

>>8172885
She is worse than hot wheels and science nigger combined.

>>8173077

Explain

>>8173077

Why?

its the exact same as dying from oxygen deprivation, so a couple minutes to pass out and then you'd die unconscious.

nitrogen doesn't harm you like its toxic, stupid question desu familia

desu

why does " t b h " get changed to desu wtf

>>8172184

>What are the arguments against enforcing birth control in countries with high population grow?

muh racism

>>8172184

Short answer is freedom. Telling someone they can't procreate is taking away a basic human right.

> in countries with high population grow
In countries with high populations or growth. In a country sparsely populated, a 3-4 child per couple per generation growth rate is probably sustainable.

>>8172184
no, it should be enforced in countries with low population growth.

1 person from the united states consumes 32 times more resources than an ethiopian person. If anything, "overpopulation" comes from first world countries, not third world countries.

If you think we need less people on earth, start by an heroing, because you're the problem, not some random nigger in india or africa.

>>8172137
Yes, or you just mistook wind from air friction.

>>8172137
wind direction is influenced by spinning wheels.

>>8172137

Basically you have to know that there is no wind per se. What you feel is probably friction as >>8172151
says. Wind is the thermodynamic process of two systems with different temperatures trying to get into equilibrium. When you move at high speeds, what you feel is not wind. Therefore, you will always get "something" blowing in your face.

>>8172116
>herp derp solve my problem even though I am supposed to be smart enough to solve it myself

>>8172116
At my school we got an Environmental Engineering program. Essentially they work on quantifying the resources in an area, how to effectively harvest them and how to prevent said harvesting from having a negative effect on the capability of the ecosystem to sustain itself. They also do a lot of work on trying to make sustainable energy and water sources.

>>8172121
Yep, same here, we have specializing programs for nearly every field of engineering.