Tuesday, November 25, 2008

Perpetual Motion

Many individuals and organizations have attempted to construct a perpetual motion machine, i.e. an engine that requires no external energy to keep itself running. A subdivision of the U.S. Department of Agriculture has actually succeeded in engineering and building several of these devices, each with different design schemes. Unfortunately, each device to date has proven unable to run for more than several seconds, quickly succumbing to the physical force generated from its operation and literally tearing itself apart. Interestingly, most people present at test runs of these devices report experiencing severe migraine headaches for up to a week afterwards.

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