Radar, jets, rockets, Atom Bomb, Penicillin
The first use of gas in a war was used in world war one.
machine guns
well, the microwave was invented, the radio, and new guns
There were lots of new technologies used in World War I. Tanks, airplanes, modern machine guns, poison gas, telephones and radios are a few examples.
The horse-drawn chariot .
Of course (while not entirely new) the proliferation of the machine gun forced the type of warfare that ensued.
Machine guns, trucks, planes, mortars, and telegrams. These are the first five that come to mind.
the jeep and the bouncing bomb and radar was developed (your welcome)
New technologies were made. There were new weapons such as Tanks, Cannons, Submarines, Chemical Gas, and Military Airplanes.
They allowed Germany to take France easily
Notable ones were tanks and chemical warfare. 'Tanks' were named for that which they were disguised as - water tanks. Chemicals used in the First World War were gases that blinded, blistered, and killed (mustard and chlorine gases).
New technologies were made. There were new weapons such as Tanks, Cannons, Submarines, Chemical Gas, and Military Airplanes.