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The Fido XT Portable Explosives Detector. The Fido explosives detector is a battery-powered, handheld sensory device that uses amplifying fluorescent polymer (AFP) materials to detect trace levels of high explosives like trinitrotoluene (TNT).
In the past, stationary tools were powered by windmills, water wheels, and steam. Some museums and hobbyists still maintain and operate stationary tools powered by these older power sources. Portable electric tools may be either corded or battery-powered. Compressed air is the customary power source for nailers and paint sprayers.
An electric flyswatter (sometimes called mosquito bat, racket zapper, [22] or zap racket) is a battery-powered, handheld bug zapper that resembles a tennis racket invented by Tsao-i Shih in 1996. [23] The handle contains a battery-powered high-voltage generator.
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Steven Sasson developed a portable, battery operated, self-contained digital camera at Kodak in 1975. [4] It weighed 8 pounds (3.6 kg) and used a Fairchild CCD image sensor having only 100 × 100 pixels (0.01 megapixels). The images were digitally recorded onto a cassette tape, a process that took twenty-three seconds per image.
A rechargeable electric hand warmer. This device plugs into a USB port to charge its battery. It can also be used to charge or power other devices via USB. Battery operated hand warmers use electrically resistive heating devices to convert electrical energy in the battery into heat.