What instrument did Ben Franklin invent in 1761?

Answer 1

glass harmonica - worked for radio trivia.
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Answer 2

Glass Harmonica is what you have to enter for radio trivia. However it is actually a Glass Armonica also known as a glass armonica or a glass harmonica.

"In 1761, while living in England, Franklin heard a performer playing musical glasses. Franklin wrote: "He collected a number of glasses of different sizes, fixed them near each other on a table, and tuned them by putting into them water, more or less as each note required. The tones were brought out by passing his fingers round their brims."

Franklin was charmed by the music, but felt that there was a better way to create the same sound. He had a glassmaker create thirty-seven hemispheres made of glass, with each hemisphere being a different size and thickness to produce different pitches. Franklin ran an iron rod through a hole in the top of each hemisphere so that they could nest together from largest to smallest. He linked all of this to an apparatus like a spinning wheel, with a foot treadle that turned the rod, making the glass hemispheres rotate. Franklin moistened his fingers and held them against the rims of the glass hemispheres as they turned, producing a sound similar to the musical glasses. The glass hemispheres were color coded with paint to identify the notes."

http://www.pbs.org/benfranklin/l3_inquiring_glass.html

Answer 3

Glass Harmonica

Answer 4

he invented the glass harmonica in 1761

Answer 5

HARMONICA worked for 105.9 radio trivia altho it was first called the GLASS ARMONICA

Answer 6

HARMONICA 4 radio trivia

Answer 7

glass harmonica

Answer 8

glass harmonica

Answer 9

glass harmonica

Answer 10

glass harmonica