BOUNCING RADIO WAVES
August 15-20, 1945
James Stokley of General Electric uses a sheet-iron backed photo of a destroyer and laboratory equipment to demonstrate the radio-wave reflection principle of radar.
The equipment at the left sends out ultra-short radio waves which are reflected by objects in their path and in this demonstration are made to light a lamp.
Radar can "search" for many miles - the exact distance must remain a military secret.
Original Caption by Science Service
Reference Publication ELECTRONS IN ACTION (image