}

An old guitar det...

1997/11/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria

The smallest guitar in the world is the size of a human cell and the thickness of a twenty part of a human hair.

If what you want is pure curiosity, reader, but what shows us that nanotechnology has just limits: it is a guitar that we cannot hear, a guitar the size of a blood cell.

Dustin Car and Harold Craighead of Cornell University (Ithaca, USA) have worked on the crystalline silicon layer located in a substrate oxide of the guitar called “nanogitarra” with electron beams. The guitar strings have been made by chemical extraction of part of the oxide.

Each thread has a thickness of about 100 atoms. You can play the guitar through an atomic force microscope, but our ear would not hear the sound because the vibration frequencies are inadequate. This curiosity has been organized to see how far nanotechnology can go.

Gai honi buruzko eduki gehiago

Elhuyarrek garatutako teknologia