Commute to work on an engineless roller coaster train
Still experimental. It may become a reality if the economics pan out. A roller coaster train that works like the fun rides without an engine or driver!
It is all legal. Does not violate the laws of thermodynamics. It is not a perpetual motion machine.
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It is all legal. Does not violate the laws of thermodynamics. It is not a perpetual motion machine.
#-Link-Snipped-#
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