Who invented the theremin?
The theremin was invented in 1920 by Russian physicist Léon Theremin while he was researching sensors that detect motion.
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- Who was Leland Sprinkle?
“Leland Sprinkle was a mathematician who worked at the Pentagon.”
Reference: Luray Caverns
More from this shelf
What is the Great Stalacpipe Organ?
The Great Stalacpipe Organ in Luray Caverns, Virginia, makes music by tapping ancient stalactites, and Leland Sprinkle spent three years building it.
A sad fact about the pentagon
The Pentagon, in Arlington, Virginia, has twice as many bathrooms as is necessary. When it was built in the 1940s, the state of Virginia still had segregation laws requiring separate toilet facilities for blacks and whites.