Vacuum energy: Difference between revisions
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{{SeeWikipedia|Vacuum energy}} | {{SeeWikipedia|Vacuum energy}} | ||
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'''Vacuum energy''' is an underlying background [[Wikipedia:energy|energy]] that exists in space throughout the entire [[Wikipedia:Universe|universe]]. One contribution to the vacuum energy may be from [[Wikipedia:Virtual particle|virtual particles]], particle pairs throughout the universe that blink into existence and then annihilate in a timespan too short to observe. Their behavior is codified in Heisenberg's [[Wikipedia:Uncertainty principle|energy–time uncertainty principle]]. The effects of vacuum energy are thought to influence the behavior of the universe on [[Wikipedia:Physical cosmology|cosmological scales]]. In the early 21st century, [[human]]ity contemplated the theoretical possibility of using vacuum energy to create free energy machines. It was argued that due to the broken symmetry (in [[Wikipedia:Quantum electrodynamics|quantum electrodynamics]]), free energy does not violate [[Wikipedia:Conservation of energy|conservation of energy]], since the laws of thermodynamics only apply to equilibrium systems. | '''Vacuum energy''' is an underlying background [[Wikipedia:energy|energy]] that exists in space throughout the entire [[Wikipedia:Universe|universe]]. One contribution to the vacuum energy may be from [[Wikipedia:Virtual particle|virtual particles]], particle pairs throughout the universe that blink into existence and then annihilate in a timespan too short to observe. Their behavior is codified in Heisenberg's [[Wikipedia:Uncertainty principle|energy–time uncertainty principle]]. The effects of vacuum energy are thought to influence the behavior of the universe on [[Wikipedia:Physical cosmology|cosmological scales]]. In the early 21st century, [[human]]ity contemplated the theoretical possibility of using vacuum energy to create free energy machines. It was argued that due to the broken symmetry (in [[Wikipedia:Quantum electrodynamics|quantum electrodynamics]]), free energy does not violate [[Wikipedia:Conservation of energy|conservation of energy]], since the laws of thermodynamics only apply to equilibrium systems. | ||
