The piano is an acoustic, keyboard and stringed musical instrument in which the strings are struck by wooden hammers that are coated with a softer material (modern hammers are covered with dense wool felt; some early pianos used leather). It is played using a keyboard, which is a row of keys (small levers) that the performer presses down or strikes with the fingers and thumbs of both hands to cause the hammers to strike the strings.
Related
Artificial refrigeration machine
invented by William Cullen
The term refrigeration means cooling a space, substance or system to lower…
Barometer
invented by Evangelista Torricelli
A barometer is a scientific instrument that is used to measure air pressure in…
Vacuum pump
invented by Otto von guericke
A vacuum pump is a device that draws gas molecules from a sealed volume in…
Telescope
invented by Hans Lippershey
telescope is an optical instrument using lenses, curved mirrors, or a…
Suggest an invention you think it should be here
About
Inventions that changed the world
Leave a Reply