Fun Fact March 9, 2021.
9 March 2021
Most workshops have a couple of these handy tools, the cordless drill. I’ve got at least three in my collection, but when was the cord cut? According to NASA dot com the first cordless power tool was unveiled by S. Duncan Black and Alonzo Decker in 1961. Those names, at least the last names, should sound very familiar. In the mid-1960s, Martin Marietta Corporation contracted with Black & Decker to design tools for NASA. The tool company developed a zero-impact wrench for the Gemini project that spun bolts in zero gravity without spinning the astronaut. Black & Decker also designed a cordless rotary hammer drill for the Apollo moon program. The drill was used to extract rock samples from the surface of the moon and could operate at extreme temperatures and in zero-atmosphere conditions. Improvements in motor design and batteries have made cordless drills a must have.