2007-10-17 10:02:13 · 5 answers · asked by Ray K 1 in Science & Mathematics ➔ Physics
Time machine
2007-10-17 10:05:10 · answer #1 · answered by Anonymous · 0⤊ 0⤋
You can locally reverse it by the use of energy; however, the total entropy ALWAYS increases.
Example: If you pile up rocks you reduce the entropy of the pile, but your energy to do this comes from the sun's energy, involving vastly greater increase in entropy (photons spread out in an expanding sphere).
2007-10-17 10:08:41 · answer #2 · answered by Howard H 7 · 0⤊ 0⤋
The universe trends toward minimum energy and maximum entropy. If you want to reverse entropy, it requires an application of energy.
2007-10-17 10:06:16 · answer #3 · answered by jplrvflyer 5 · 0⤊ 0⤋
If it could then we wouldn't have a 2nd Law of Thermodyanmics.
2007-10-17 10:07:07 · answer #4 · answered by civil_av8r 7 · 0⤊ 0⤋
perpetual motion much?
2007-10-17 10:05:33 · answer #5 · answered by $andman 6 · 1⤊ 0⤋