Nanoscale "harp" as example of top-down NEMS

from the if-a-harp-plays-on-the-nanoscale-does-it-make-a-sound? dept.
A Christian Science Monitor article reprinted at Technology Review describes a nanoscale "harp" made with by "carving" silicon with a beam of electrons: "It may be the world's smallest harp, but it doesn't play music. It's an example of a nano-electrical-mechanical device. Like a real harp, it has 'strings.' The strings are 50 nanometers (nm) in diameter. That's 50 billionths of a meter, or about 150 atoms thick! They range in length from 1,000 to 8,000 nm. The whole "harp" is the size of a red-blood cell."