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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- How does the Great Stalacpipe Organ make sound?
“The Great Stalacpipe Organ uses rubber mallets to tap stalactites.”
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 superfluid helium?
When cooled close to absolute zero, liquid helium becomes a superfluid that flows without friction and can creep up the walls of its container.