Hey, what's that sound: Glass harmonica

Ever wondered what 37 different-sized wine glasses would sound like if they were played? Well, so did science boffin Benjamin Franklin in the mid-1700sWhat is it? The glass harmonica, or "armonica", is a beautifully steampunky spinning instrument made from glass bowls and played with the fingertips. The origins of the armonica date back to the mid-1700s, and the most famous version was dreamed-up by no less a luminary than Benjamin Franklin.Who uses it? Mozart, Beethoven and Strauss all wrote wo...

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