I'm a bit confused as to what the three body problem is. Why is it impossible to predict the motions of three bodies in orbit around eachother?
There are ten constants of motion:
Three position co-ordinates for the centre of mass of the system
Three velocity co-ordinates for the centre of mass of the system
Three vector components for the angular momentum of the system
Total energy of the system
There are 18 unknowns in the system
Three position co-ordinates for each body (nine in total)
Three velocity co-ordinates for each body (nine in total)
Try to solve a linear system of 10 equations and 18 unknowns. Can't be done.
What do people with high IQs do all day?
Depends on the person. Remember that IQ, while it makes an okay estimate of mental skills, gauges pattern recognition junk better than anything else. So the question you should probably ask is what people exceptionally talented in their field do all day. There the answer is obvious. They got so damn good by doing work in their field all the time.
Is thorium a meme? Are thorium reactors they as miraculous as this video and everyone seems to be telling me? If so, why are we not using them?
They are good.
If you can get one running that is.
The biggest offset is the creation of a liquid salt holding facility and mining.
Picture this: You have to start mining for a material that has never really been sourced before AND you must start the first ever factory with equipment JUST for the processing of thorium.
But if this was subsidized as most nuclear energy projects are, that would just be an opening investment wouldn't it? If they truly work, it should pay off.
>Can we please just leave it at that?
If you want, but I'd like to know what the big obstacle is, if only for ammunition against these people.
Hello everyone, I'm a fresh new student in Physics and, here in my country, we do not learn calculus till you enter college. I was wondering here and i did not find a properly answer on google. Which calculator should I get? A HP with those graphic functions? I'm currently a student of biochemistry and I use a Casio FX82MS but I guess it will not help me through the whole course.
Thank you in advance and I'm sorry for my lack of skills in english.
Why is my consciousness me and not someone else? Does the matter that makes up my brain have written my name on it?
The matter which makes up your brain is physically disconnected from all the other brains. That is what makes your consciousness be associated with your flesh in particular. As a kid I was a bit weirded out by this, but once you weed out the dualism it's not complicated.
What is his greatest achievement?
Does he even have a single one?
Bumping this because I'm curious and I want in on the meme. I saw "Von Neumann universes" and my nose started bleeding a bit. Conceptually that wasn't even a a very difficult idea (very very large finite numbers related to cardinality or similar), I just wasn't familiar with the jargon/motivation.
He helped win the war by making the atomic bomb
Hey /sci what music do you like to hear when you study?
Who's your favorite contemporary mathematician? Based on whatever; personality, accomplishments, etc. By contemporary I'm looking at mid 20th century onwards.
Give me your thoughts on how it co uld become possible
Well, it depends what kind of teleportation, if it's transporter to transporter it's relatively easy. You vaporise the guy transmit his make up at the speed of light and 3d print him at the other side.
Transporter to anywhere else you need to break a few laws.
Is sociology a science? Be honest /sci/
No because it lacks a predictive aspect in a quantitative sense. Chemists and physicists can predict outcomes down to multiple decimal points.
Sociologists cannot accurately predict outcomes due to there being to many extraneous factors involved. They should be treated the same as the tarot card readers and astrologers.
Anons how to solve this without wolphram
4^99 mod 375
Imagine you are taking this photo. After you do it, you look to the landscape. How would you see it if we saw in 3D?
You do see in 3d. You have two inputs, one from each eye. The brain isn't a rasterizer, it doesn't blend into a flat image. All the preprocessing it does includes that depth information that's an inherent consequence of binocular vision.
Is anyone else having trouble with these picture captchas? Do I really have to give it the right answer 3-10 times every single post?
So is this where EEs, or at least people who aren't dumb like me when it comes to circuits, hang out?
Because I have this problem: I have two loads, both about 50 Ohm, and I want the sum of power on both to be roughly constant (about 0.5 W -- sourced from a programmable PSU). I want to be able to change the relative distribution of the power across these two loads reasonably quickly -- within 1 ms.
How do I do this? Plus I need to control it via a PC (i.e., the distribution changes and is not know a priori), so something Arduino (or mcu in general) - based...
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Why should we invest so much resources, time and energy on the well being of animals when there are humans in much more dire states. Shouldn't humans be first priority /sci/?
Is psychiatry a hard or soft science?