(1900-1992)
Physicist, developer.
He was the first to use radar to take measurements on the Moon and developed the Light Meter. He also developed several patents in the field of high voltage gas discharge tubes,fluorescent and vacuum tubes. As a George Washington University professor he defined the ‘light meter’. In 1983 his new definition for the meter was accepted. He also achieved considerable success in the physics of active gases and worked out a new method of fast atom counting. He demonstrated the universal system of measuring time by experiment, thus proving Einstein’s idea of space time.