It depends on the type of vacuum. If it's "pure" Vacuum, well it's not.
2006-12-11 03:44:15
·
answer #1
·
answered by Paw 3
·
0⤊
1⤋
The following I had to read a couple of times to understand...and then only vaguely:
VACUUM ENERGY EXTRACTION?
As we have seen, the vacuum constitutes an extremely energetic physical state. Nonetheless, it is a giant step to consider the possibility that vacuum energy can be 'mined' for practical use. To begin, without careful thought as to the role that the vacuum plays in particle-vacuum interactions, it would only be natural to assume that any attempt to extract energy from the vacuum might somehow violate energy conservation laws or thermodynamic constraints (as in misguided attempts to extract energy from a heat bath under equilibrium conditions). As we shall see, however, this is not quite the case… With parallel, non-charged conducting plates set a distance D apart, only those (electromagnetic) modes which satisfy the plate boundary conditions (vanishing tangential electric field) are permitted to exist. In the interior space this constrains the modes to a discrete set of wavelengths for which an integer number of half-wavelengths just spans the distance D (see Figure 3). In particular, no mode for which a half-wavelength is greater than D can fit; as a result, all longer-wavelength modes are excluded, since for these wavelengths the pair of plates constitutes a cavity below cutoff. The constraints for modes exterior to the plates, on the other hand, are much less restrictive due to the larger spaces involved. Therefore, the number of viable modes exterior is greater than that interior. Since such modes, even in vacuum state, carry energy and momentum, the radiation pressure inward overbalances that outward…As is always the case, bodies in an attractive potential, free to move, will do so, and in this case the plates will move toward each other. The conservation of energy dictates that in this process potential energy is converted to some other form, in this case the kinetic energy of motion. When the plates finally collide, the kinetic energy is then transformed into heat. (The overall process is essentially identical to the conversion of gravitational potential energy into heat by an object that falls to the ground.) Since in this case the Casimir energy derives from the vacuum, the process constitutes the conversion of vacuum energy into heat, and is no more mysterious than in the analogous gravitational case.
2006-12-09 11:08:19
·
answer #2
·
answered by Anonymous
·
0⤊
1⤋
that's a solid theory yet darkish ability is a theoretical entity that in the process all possibility would not exist. area density diminishes with the aid of age enlargement and the production of remember and there's a element previous which it won't be able to exist,it somewhat is optimal length. It darkish ability did exist and could be extracted it may in all possibility make a contribution to the reducing of the density of area and diminishing the optimal length of the universe.
2016-12-30 05:01:23
·
answer #3
·
answered by ? 3
·
0⤊
0⤋
If you refer to an ideal perfect vacuum, ie completely void of all matter, then thermodynamically, no you cannot extract energy. With no matter, there is no mechanism for the transsport or storage of thermal energy. Thermodynamics studies how energy and work are interrelated.
2006-12-09 11:07:53
·
answer #4
·
answered by kart_125cc 2
·
0⤊
1⤋
Well let's make one thing clear. Just because somthing is a "vacuum" that doesn't mean there is nothing going on in it. There are always trace amounts of gas, very tiny particles and osscilations of matter/antimatter collisions going on in a vaccume.
2006-12-09 10:42:41
·
answer #5
·
answered by travis R 4
·
0⤊
1⤋
Your question is too vague. Are you approaching this from a economical perspective or from a scientific perspective? Yes it can be done, but with a net loss of energy, so you can't make money from it.
2006-12-09 10:46:45
·
answer #6
·
answered by Michaelsgdec 5
·
0⤊
0⤋