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Amid global uncertainty, the topic of security and defense returned to the financial investors’ minds. VanEck‘s Defense ETF provides investors with an opportunity to invest in the leaders of defense technologies, large-scale cybersecurity and providers of relevant services.
Jet engines were developed by the military in the 1940s for the jet fighters and have since been adapted for use in commercial aircraft, which have revolutionized air travel.
Source: Britannica.
Global Positioning System, which is now commonly used in mobile devices for navigation, was originally developed by the US military for navigation and targeting purposes.
Source: U.S. Department of Defense.
In 1937 a group of UK physicists built a first multi-cavity magnetron, an instrument capable of producting short waves, for the British and American military radar installations in World War II. In 1940, as the need in more precise measurments arose, English scientists invented a valve that for the first time could produce pulses of microwave radio energy at a wavelength of 10 cm – so-called microvawes. In 1945, the heating effect of a high-power microwave beam was accidentally discovered by Percy Spencer, an American engineer employed by Raytheon at the time. Raytheon later licensed its patents for the first home-use microwave oven produced in 1955.
Source: Whirlpool.