Massachusetts Institute of Technology (MIT) has a web site devoted
to inventions, "The Invention Dimension!" at

  http://web.mit.edu/invent/index.html

A recent article on the Theremin begins, "Just a few years after the
invention of the vacuum tube, Leon Theremin invented one of the world's
first and most unique electronic musical instruments: the aetherphone,
better known as the Theremin."

Read the rest of this interesting article at
http://web.mit.edu/invent/www/inventorsR-Z/theremin.html

Jody Kravitz