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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- Does the Great Stalacpipe Organ play by itself?
“The Great Stalacpipe Organ plays automatically during cave tours.”
Reference: Luray Caverns
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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.
What is the most visited country in the world?
France is the most visited country in the world, drawing roughly 100 million international tourists a year.