Topic: Perpetual Machines
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What is a Perpetual Motion Machine?
A perpetual motion machine is a machine that violates one or both of the laws of physics. The water screw in 1660 was one of the original examples of a perpetual motion machine. Read More »
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Who invented the perpetual motion machine?
No one, and no one ever will, since perpetual motion machines are a scientific impossibility. Read More »
Source: http://wiki.answers.com/Q/Who_invented_the_perpetual_motion_machi...
Why is a perpetual motion machine impossible?
Perpetual motion machine is impossible because of the loss of energy due to friction or some other factors. This becomes clear in case of heat engine too. Certain amount of energy will be lost in irreversible way. Hence perpetual motion bec... Read More »
Source: http://wiki.answers.com/Q/Why_is_a_perpetual_motion_machine_impos...
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Perpetual Machines
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Perpetual Motion Machine- a machine that can continue to do work indefinitely without drawing energy from some external source.
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Source: http://www.chacha.com/question/what-are-perpetual-motion-machines
Perpetual motion is theoretically impossible. In order to have perpetual motion, you would need over 100 percent efficiency and to overcome drag, gravity and friction. When faced with someone who claims to have one, it is often quite diffic...
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Source: http://wiki.answers.com/Q/How_do_you_make_a_perpetual_motion_mach...
According to the second law of thermodynamics, all energy shifts will incur entropy, meaning that something is lost (mostly in the form of heat). Even if some egg head did manage to create a machine with 100% efficiency and ran on itself fo...
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Source: http://wiki.answers.com/Q/Why_don't_perpetual_motion_machines_wor...
Its a machine that has to be started but doesn't need to be restarted. Note: There are comments associated with this question. See the discussion page to add to the conversation.
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Source: http://wiki.answers.com/Q/What_does_perpetual_motion_machine_mean
it depends on what you use to build it
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Source: http://wiki.answers.com/Q/How_does_a_perpetual_motion_machine_wor...
Lots of people who don't understand thermodynamics very well. (Perpetual motion machines are not possible.)
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Source: http://wiki.answers.com/Q/Who_had_the_idea_of_perpetual_motion_ma...
