Photograph by Deshakalyan Chowdhury/AFP/Getty Images. A tsunami is a series of ocean waves that sends surges of water, sometimes reaching heights of over 100 feet (30.5 meters), onto land.These walls of water can cause widespread destruction when they crash ashore.hotograph by Deshakalyan Chowdhury/AFP/Getty Images. A tsunami is a series of ocean waves that sends surges of water, sometimes reaching heights of over 100 feet (30.5 meters), onto land.
First thermographic camera In 1929, Hungarian physicist KÃ¡lmÃ¡n Tihanyi invented the infrared-sensitive (night vision) electronic television camera for anti-aircraft defense in Britain. The first thermographic cameras developed were infrared line scanners.
Electromagnetic radiation of wavelengths other than those of visible light were discovered in the early 19th century. The discovery of infrared radiation is ascribed to astronomer William Herschel, who published his results in 1800 before the Royal Society of London.