interesting device, could have many applications
thanks for posting it 
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President Dwight D. Eisenhower 1953: Every gun that is made, every warship launched, every rocket fired signifies, in the final sense, a theft from those who hunger and are not fed, those who are cold and are not clothed. This world in arms is not spending money alone, it is spending the sweat of its laborers, the genius of its scientists, the hopes of its children
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