Explanation Definition and 955 Threads

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...