Radar was first put on ships during WW2.
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.
1935
The newly invented radar.
1935
it is on the ship in the water
yes it was
At the University of Oklahoma
Christian Doppler
1887
March 1954
Radar array.
they use a radar