September 5, 1997.
radar
radar
blip blip on the radar
That would be a radar.
radar
1935
As far as I know, radar was invented by a Hungarian scientist named Zoltan Bay. That radar was first used in World War II by the British troops.
Screen As in screening, screen door, and a screen (pick).
Radar was invented in 1935 by Scottish physicist Sir Robert Watson-Watt. He developed the first practical radar system for detecting aircraft.
Radar was first put on ships during WW2.
The newly invented radar.
you need meatal and a screen thtas it