2006-09-03 05:48:18 · 5 answers · asked by goring 6 in Science & Mathematics ➔ Physics
A string is theorized to be smaller than the Planck length. At this size, the concept of speed doesn't exist, since time and distance cannot be measured.
2006-09-03 05:51:02 · answer #1 · answered by stevewbcanada 6 · 1⤊ 1⤋
A string is so small the we will probably never be able to see or even test one. That's why string theory will forever be a theory because it can't be tested. Nonetheless, for a size comparison try this- look at your car for example now compare that to the size of our solar system (using pre-Pluto exile dimensions! LOL). Your car is the size of a string and the solar system is the size of an atom. That's pretty darn small!
For more information go to the NOVA web site and there is a movie you can watch for free on your computer that's all about string theory.
2006-09-03 12:57:15 · answer #2 · answered by Steve N 3 · 0⤊ 0⤋
a string, if string theory is correct will be proportional to the size of a tree is to the entire universe. As for its density, a string doesnt have any width. It vibrates at certain frequencies, and the frequencies at which it vibrates ultimately determines the characteristics of each substance. I personally do not believe in string theory, if it wants to be more recognized it needs some serious revision.
2006-09-03 13:36:41 · answer #3 · answered by Adam 4 · 1⤊ 0⤋
A string is on the sub-atomic level. At this time,we do not have the tools to measure the density, length or velocity of a string, if they exist. Nova has an interesting program on string theory. The dilemma of how Einstein tries to reconcile his theory of relativity (motion of large things, like planets) and quantum mechanics(motion of sub-atomic particles) into a Unified Theory is discussed. Very interesting.
2006-09-03 13:30:54 · answer #4 · answered by carpediem 3 · 0⤊ 0⤋
It is called the SUPER string theory.
2006-09-03 13:56:47 · answer #5 · answered by BlueSea 7 · 0⤊ 1⤋