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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- What type of instrument is a didgeridoo?
“The didgeridoo is a wind instrument.”
Reference: Encyclopaedia Britannica
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Where does the didgeridoo come from?
The didgeridoo was developed by Aboriginal peoples of northern Australia, and rock art suggests it's been played for at least 1,500 years.
How many species of elephant are there?
There are three living elephant species: the African savanna elephant, the African forest elephant, and the Asian elephant.