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Free invention: Digit Hammock - Unventional
ABSTRACT An electrical generator that uses a standard pulley/hammock system to convert the movement of one’s digits into electrical current. BACKGROUND OF INVENTION Imagine the following ad in your local newspaper: Help Wanted: Experienced secretary with energetic personality and muscular hands. Minimum typing speed of 60 microwatts per minute. Within years this ad will be a reality. … Continue reading Free invention: Digit Hammock →