Portable Device Harvests Energy from Chaotic Motion

Engineers have long pursued the idea that the energy of chaotic motion - everything from walking to ocean tides - could be harnessed for electrical generation. But few devices have proven up to the task; that is, sufficiently practical and scalable to provide enough useful, usable power. Now, a UK-company has invented what it believes is a simple, portable device that can realistically convert many of the almost limitless sources of continuous motion energy into electricity. They claim their device can translate various kinds of bi-directional motion around an axis into a rotational motion that can drive a generator, producing anywhere from a few watts to hundreds of kilowatts of power.

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