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Old April 27th 12, 03:23 PM posted to sci.astro
Androcles[_73_]
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Default THERMODYNAMICS AND RELATIVITY: DEAD SCIENCES

The first law of thermodynamics is: energy is conserved. That does
not mean created, it cannot be created, but it can be extracted from
potential energy to do useful work.
The second law of thermodynamics is: energy is dissipated with
each interaction.
That doesn't mean destroyed, it cannot be destroyed, but it does
mean lost, it can no longer do useful work.
For example, burning coal to heat steam to drive a turbine to
produce electricity to light a lamp means the energy in the coal
is dissipated as heat when the steam cools, as heat when the
turbine cools, as heat that the transformer radiates, as heat
that the light radiates, and all this heat eventually radiates into
space. The coal was trees, sunlight provided the energy for
the trees to grow. All energy on Earth (except nuclear energy)
came from the sun and all energy on Earth eventually radiates
into space. There is not one single example of energy being
created and not one single example of 100% efficient conversion
of one form of energy to another.
Your persistent attempts to have a widget operate at 100%
efficiency are total nonsense.