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Archived threads in /sci/ - Science & Math - 7. page

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32 posts and 6 images submitted.
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dam u mad nigga lmao
Well that's interesting, how close is it to its nearest star?

What sort of star is it orbiting around?

With that, how much energy could it be absorbing from its star? How is this energy converted on a planetary scale? How is this energy exuded?

Could be useful for thermal energy research

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Are mathematicians born or made?
5 posts and 1 images submitted.
Born and made from vagina.
Roughly 50% born, 50% made
Born. Math may be something you can learn but original math is the kind of stuff people have to be wired for.
Crack open a calculus textbook and realize the turbo autists that brought us modern math were always freaks and weirdos from birth. Gauss and Hamilton in particular were child prodigies.

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The reason lies in the fact that given two big primes [math]p_{1}[/math] and [math]p_{2}[/math] it would be difficult to factorize [math]p_{1}p_{2}[/math].
The bigger [math]p_{1},p_{2}[/math], the better.

Can on the other hand exclusive knowledge of big primes be used to crack them?
I don't know how this would work so I'm just asking.
3 posts and 1 images submitted.
Nah, you can download a list of big primes on the internet, it's still np-hard to factor though
Sorry, It's not NP-hard. No polynomial algorithm exists for factoring on current architectures.

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What are the craziest tests on people with their brain? I've been trying to find some but can't find any true (Russian sleeper experiment) or overly crazy
3 posts and 2 images submitted.
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How about the one where a guy had a large pole that was impaled into his brain, but he could still function? Google Phineas Gage. The left part of his brain was completely destroyed and he became a completely changed man.
Did reading into that loved it

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Hi, say I have a bunch of 5c, 10c, 20c and 50c coins and I'm trying to make up $1. How do I map out all the possible combinations visually?
4 posts and 2 images submitted.
this is not a troll question btw, i said VISUALLY, like a graph. if i just plot 0.5x, 0.2x, 0.1x and 0.05x or something like that it doesnt account for all possible combinations, for example
um...0.5w+0.2x+0.1y+0.05z...which..how do you represent on a graph. Or there's something erroneous about this thinking
Lets say you have just $0.05 and $0.25 coins.

You want all solutions to the equation

x*0.05+y*0.25 = 1

where x and y are non-negative integers.

That equation simplifies down to
As you can see by the graph, the non-negative integer solutions are

(0,4),(5,3),(10,2), (15,1), (20,0)

Lets say you want to work with 4 different types of coins. That's more difficult because now instead of working with a 2D solution set(the plane), you are working with a 4D solution set which is impossible to properly visualize.

However, it's easy to model:
w*0.05 + 0.1*x + 0.2*y + 0.5*z = 1

All solutions to this equation that uses non-negative integers are valid (since you can'thage a negative or partial coin)

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Let's see how high we shitpost with prime numbers.

3 posts and 1 images submitted.

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Came up on this article on Wikipedia. It references a talking elephant, named Batyr

The elephant's voice was broadcast on radio, and several prestigious Soviet institutions wrote papers on it.

Soviet science wasn't done for the money, it was done for the prestige and honor, and for the joy of doing science. Few were willing to discus pseudoscience.

Was the elephant just operantly conditioned to talk?

Can any of you find recordings?
3 posts and 1 images submitted.
Please guys, I'm curious. \
lol idk

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I don't get this
4 posts and 1 images submitted.
do you take out the dotted item after catching it place it back?
The numbers here seem to work if you put it back, i.e., catch-and-release.
well aren't I retarded huh

13 hours later you have your answers kid

8 dots, 1 ducks, 7 rest
10 dots, 1 ducks, 14 rest
12 dots, 1 ducks, 23 rest
12 dots, 2 ducks, 4 rest
16 dots, 2 ducks, 14 rest
20 dots, 2 ducks, 28 rest
18 dots, 3 ducks, 6 rest
24 dots, 3 ducks, 21 rest
20 dots, 4 ducks, 1 rest
24 dots, 4 ducks, 8 rest

tf is wrong with me? So I'm a biochem major and the grades I got first year are the following, Bio-98, chem-93, physics-89, stats-83, calculus......65. Basically all the mistakes and failures in chem and physics are from math errors and short sightedness . Why tf am I like this? am I MATHAMATICALLY AUTISTIC?
3 posts and 1 images submitted.
No no no my good friend. If you were mathematically autistic then you would be getting A's. You are mathematically normal. A math normie

autism is a specific sort of retardation. Other forms of retardation would be just retardation.

You're retarded at math. thats what you meant to say of yourself.

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Hey, /sci/ what mathematical equation do you most associate with your personal edification and the lifting of your spirits? Asking for a friend.
5 posts and 1 images submitted.
1 + 1 = 2
x+0 = x*1

It just has it all

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