what was the first polymer toy
we used a radar
The cavity magnetron was used in RADAR during WW2 ~ see related link below .
One of the first uses was during the Battle of Britain. British radar would detect oncoming German airplanes and the British would send up the Supermarine Spitfire to shoot down fighters and the Hawker Hurricane to shoot down bombers. Radar let the British use their aircraft to their best advantage. Instead of constantly flying air patrol, they could take off when the enemy was coming, and attack them where they were. It was the advantage of radar that enabled the British to defeat the Germans and showed once and for all time, the importance of radar in air combat.
Radar was significant in the detection of the Luftwaffe.
Hmm, gee... What do you use to track airplanes? How about a radar? Yes, that seems reasonable.
we used a radar
The cavity magnetron was used in RADAR during WW2 ~ see related link below .
Radar was used by England to detect incoming planes
Yes. Radar was used on major warships by all the major powers at some point during WW2. The US and UK had an advantage in that their radar was developed and equipped earlier in the war. The standard large warship radar for the US was CXAM.
radar is an object detectotion system
Radar technology had been around before world war 2 if I'm correct. It probably wasn't heavily used as it is today or in ww2. WW2 saw a great improvement on radar; radar saved England during WW2 because they could detect German planes before they got even close to land.
World War 2 saw the first wartime use of radar.
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.
During the Battle of Great Britain at the time of WWII
Radar was invented and first used during the second world war. It is still, very much in use today.It's original use was to detect, and thus prepare for, fighter aircraft and bombers.Ships and aircraft use radar for navigation and collision avoidance.Air traffic control use radar to keep track of aircraft and keep them safe.Weather stations use radar to detect rain clouds.Radar is also being used in, experimental, driverless cars.
Radar : radio detection and ranging .
Microwave IS used in RADAR.