perpetual motion machines
DESCRIPTION
Perpetual Motion Machines. Presented by Chris Wong. The First Law of Thermodynamics. “Change in the internal energy of a system is equal to the amount of energy added by heating the system minus the amount lost as a result of the work done by the system on the surroundings.”. - PowerPoint PPT PresentationTRANSCRIPT
Perpetual Motion Machines
Presented by Chris Wong
“Change in the internal energy of a system is equal to the amount of energy added by heating the system minus the amount lost as a result of the work done by the system on the surroundings.”
The First Law of Thermodynamics
Entropy of an isolated system not in equilibrium will increase over time to approach a maximum value at equilibrium
Differences in temperature, pressure, and chemical potential even out in a physical system that is isolated from the outside world.
The Second Law of Thermodynamics
Perpetual Motion movement that goes
on forever any device or system
that perpetually (indefinitely) produces more energy than it consumes, resulting in a net output of energy for indefinite time
Developed by Johann Bessler (1680 – 1745)The Orffyreus Wheel
The Other Orffyreus Wheel
“With the exception of cases involving perpetual motion, a model is not ordinarily required by the Office to demonstrate the operability of a device. If operability of a device is questioned, the applicant must establish it to the satisfaction of the examiner, but he or she may choose his or her own way of so doing.”
“A rejection [of a patent application] on the ground of lack of utility includes the more specific grounds of inoperativeness, involving perpetual motion.”
United States Patent and Trade Office
Trying to test the laws of physics
Ideas:◦ Gravity
Overbalanced wheel
◦ Magnets Electromagnet levitation to eliminate friction
Why keep trying?
Failed Proposals
The Overbalanced Wheel The Float Belt