Explanation Definition and 961 Threads

Well, we all know that the farther you move the point of force application from the point of rotation, the greater the torque. But why? I know the equations, but I am lacking a physical explanation of why this is. The best explanation that I've gotten is something along the lines of a...

I've just gotten around to reading "The Elegant Universe" and it has an explanation of why it is impossible to travel faster then light through the use of Einstein's equation E=mc^2 (pg 52). Greene says that the faster an object moves the more energy it has, and because of Einstein's equation...

Hello all. I live in Singapore, located somewhere at the equator. Just a few nights ago i spotted something rather strange. I looked up into the sky and to my astonishment, there was this region of clouds that was illuminated orange in colour every once in a while. It's like glowing at a regular...

...the electron. I don't know what it is and I've read dozens of electronics/chemistry books trying to figure it out. I don't want to hear that it's a wave, I don't want to hear that it's a particle and I certainly don't want to hear about the duality of it being a wave-particle. I don't care...

As it's simply explained, the many worlds theory states that everything has an infinite amount of possible outcomes and that a new reality is created in which one of each outcome occurs. This process of new reality creation keeps occurring infinately, creating more and more infinite amounts of...

Heisenberg's Uncertainty Principle/Schrodinger's Cat Couples engaged in a romantic relationship usually have large amounts of physical contact with one another. However, when someone seems near, physically, to them, they begin acting normally again, even if blushing a bit. We therefore see that...

what triggers laughter? i am speaking of the kind that brings you to tears, makes your belly shake, makes you smile real big...what chemicals are responsible for true laughter? or is it a socially learned response?

http://www.cnn.com/2003/TECH/science/09/08/ghosts.sounds.reut/index.html

First, let me say that I have degrees or anything. I'm just out of hig school and took regular math the whole time I was there. I am not a mathematician or a numerologist. But, I do have a theory.:wink: Could we say that 6/3 is the same as saying "six divided into three equal parts"? If...

Can someone please define for me what is meant by string theory and what the significance of it is and why, according to stephen hawkins, it would take 32 dimension to permit the existence of such a phenomenon.

I am nearly certain that it has been suggested that three of the four now thought to be fundamental causes of motion have been unified. Excluding gravity, these are : the weak force, the strong force and electromagnetism. Can someone please explain to me what indicates or how it was shown that...