What were a few major inventions during world war 2?

Question: What were a few major inventions during world war 2!?
Best Answer - Chosen by Asker:

Helicopters ( invented before WW2 )and guided missles were NOT invented during world war 2!. Neither were stealth planes or jet aircraft!.

Nuclear weapons!.!.!.!.!.Automatic weapons!.
Beach Landing Craft!.Www@QuestionHome@Com

Jet aircraft, helicopters, atomic weapons, guided rockets and missiles, radar!.Www@QuestionHome@Com

The V 1/2 rockets,
Atomic Bombs,
Stealth plane :S maybeWww@QuestionHome@Com