Yet another invention that came from World War II, the technology was put into wide use after Robert Watson Watt who found that he could bounce soundwaves as far as 100 miles away and the sound waves would come back.
Great Britain’s RAF was one of the first to use the tech and their ability to see the enemy coming helped turn the tide of war.
There have long been rumors that super glue was created during World War II as a way to mend soldier’s wounds. It turns out the recipe for the substance was arrived at when its inventor was looking to create a clear plastic gun sight for rifles. Years later, the inventor happened on the recipe again and took a longer look, realizing its applications.