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flamethrowers
germany experimented wi5h flamethrowers -
Gas Attacks
Weather conditions are needed to cooperate so that they can launch effectively. -
Tracer Bullets
The first attempt, in 1915, wasn’t actually that useful, as the trail was “erratic” and limited to 100 meters -
Interrupter Gear
After the Swiss engineer Franz Schneider patented his idea for an interrupter gear in 1913, a finished version was presented by Dutch designer Anthony Fokker, whose “synchronizer,” centered on a cam attached to the propeller shaft -
Air traffic control
Development began in 1915 at San Diego, and by 1916 technicians could send a radio telegraph over a distance of 140 miles; radio telegraph messages were also exchanged between planes in flight.