Everyone has heard of the electromagnetic spectrum. It is a collection of all wavelengths and frequencies of light, from radio and microwave to ultraviolet and gamma. The light we see is called the "visible" part of the spectrum. The rest...
The first use of aircraft was during World War I. In the early years of the war, planes were increasingly used for espionage and surveillance, but as the war progressed, air strikes became more deadly by the end of the...
This black and white image was captured by a 35 mm camera lens carried by a V-2 rocket from an altitude of 105 km. This rocket is also the first man-made object to cross the Kármán line. Although the rocket...
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