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German physicist Ewald Georg von Kleist and Dutch scientist Pieter van Musschenbroek invented Leyden jars. 1752: American scientist Benjamin Franklin showed that lightning was electrical by flying a kite and explained how Leyden jars work. 1780: Italian scientist Luigi Galvani discovered Galvanic action in living tissue. 1785
Walter Hans Schottky (German: [ˈvaltɐ ˈʃɔtki]; 23 July 1886 – 4 March 1976) was a German physicist who played a major early role in developing the theory of electron and ion emission phenomena, [2] invented the screen-grid vacuum tube in 1915 while working at Siemens, [3] co-invented the ribbon microphone and ribbon loudspeaker along with Dr. Erwin Gerlach in 1924 [4] and later made ...
1911 – Superconductivity is discovered by Heike Kamerlingh Onnes, who was studying the resistivity of solid mercury at cryogenic temperatures using the recently discovered liquid helium as a refrigerant. At the temperature of 4.2 K, he observed that the resistivity abruptly disappeared.
Heinrich Rudolf Hertz (/ h ɜːr t s / HURTS; German: [ˈhaɪnʁɪç hɛʁts]; [1] [2] 22 February 1857 – 1 January 1894) was a German physicist, who first conclusively proved the existence of the electromagnetic waves predicted by James Clerk Maxwell's equations of electromagnetism, laying the foundation for the radio and modern telecommunications.
Marconi technician Peter Wright, a British scientist and later MI5 counterintelligence officer, ran the investigation. [9] He was able to get The Thing working reliably with an illuminating frequency of 800 MHz. The generator which had discovered the device was tuned to 1800 MHz.
1986 – Kodak scientists invent the world's first megapixel sensor. 1987 Canon releases the first camera for its fully electronic autofocus EF lens mount, the EOS 650 [20] Photoshop developed by Thomas and John Knoll; 1990 — Adobe Photoshop 1.0 released on February 19, for Macintosh exclusively. [21] [22] 1992 – Photo CD created by Kodak. [23]
Scientists have completed the construction of the world’s biggest camera after two decades of work.. The 3,200 megapixel Legacy Survey of Space and Time (LSST) Camera weighs 3 metric tons and ...
Edwin Herbert Land, ForMemRS, [2] FRPS, Hon.MRI (May 7, 1909 – March 1, 1991) was an American scientist and inventor, [4] best known as the co-founder of the Polaroid Corporation. He invented inexpensive filters for polarizing light, a practical system of in-camera instant photography , and the retinex theory of color vision , among other things.