The two that spring to mind at once are: # Long range missiles # The atomic bomb
The Chinese invented the chopsticks, while the English invented the wheel, however, the most important invention was the invention of your mother
Hermon L Grimes invented the first automatic folding wing airplane, Franklin D. Roosevelt was the president who used the invention in World War ll
The toaster was invented before World War I, which lasted from 1914 to 1918. An electric toaster was invented in 1893, but it was not commercially successful. A successful electric toaster was invented in 1909, also before WWI. But the pop-up toaster was not invented until after WWI, in 1921. So it is likely that refinements of the toaster invention were continuing during the war.
The most important invention in world war 2 was the atomic bomb.
The aircraft carrier was a new invention in World War I. The use of deadly gases was also a new invention in World War I.
Tanks were invented because they were needed. They were needed because the invention of machine guns and barbed wire gave the defence a huge advantage. An assault against a prepared position was next to suicidal. Once the opposing sides sorted themselves out, the war became to all intents and purposes a stalemate.
Inventions of World War 1The Invention of the Machine GunThe Invention of the Armored TankThe Invention of the BiplaneThe Invention of the Self Loading RifleThe Invention of the FlamethrowerThe Invention of Chemical WarfareThe Invention of Tracer BulletsThe Invention of the HydrophoneThe Invention of the Aircraft CarrierThe Invention of the UAVThe Invention of Moist Towelettes (lol)
Because it was not invented yet
The bazooka was a WW2 invention.
Eli Whitney's Invention was Important because he invented lots of Items such as The Cottin Gin,Spinning Jenny, The Water Frame, & Also Power Loom. They Used These Items While Trade & War.
World War 2 Invention of the atomic bomb Invention of jet engine The Holocaust End of World War 2
pretty sure the telegraph was invented during the civil war- and if not, than it was definitely used during the war