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20th-century percussion instruments (21 P) Pages in category "20th-century inventions" ... Point of sale; Popham panel; Power window; R.
Obsolete technology Replacement Still used for Bathing machine: No longer required due to changing social standards of morality Hourglass: Clock: Tasks where a fixed amount of time can be measured with a low-tech solution: Exposure time tracker in saunas (where electronics might be damaged by the heat or ultraviolet light); retro kitchen timers, board games, other short-term timers.
Dean Kamen invented the iBOT in 1999. [26] Kamen filed U.S. patent #6311794 on October 27, 1999 and later being [clarification needed] issued on November 6, 2001. [27] 1999 Camera phone. The introduction of the camera phone in 1999 was an innovation that changed the daily lives of millions of people around the world.
Early in 2019, Bill Gates called lab-grown meats one of the "10 Breakthrough Technologies" of 2019. For more American inventions and innovators looking to make a difference in the world, check out ...
Image credits: Isabella Thornton #2 An Early Motorised Scooter. The Autoped was an early vision of today's scooters. This was a personal transport system originally developed in 1915.
The Lower Paleolithic period lasted over 3 million years, during which there many human-like species evolved including toward the end of this period, Homo sapiens.The original divergence between humans and chimpanzees occurred 13 (), however interbreeding continued until as recently as 4 Ma, with the first species clearly belonging to the human (and not chimpanzee) lineage being ...
5. Play-Doh. Who: Kay Zufall, Brian, Joseph McVicker, Bill Rhodenbaugh When: 1956 . How it was created: The gooey toy kids have been playing with for decades began as a household cleaning product ...
9th century – The sine quadrant, was invented by Muhammad ibn Musa al-Khwarizmi in the 9th century at the House of Wisdom in Baghdad. [3]: 128 The other types were the universal quadrant, the horary quadrant and the astrolabe quadrant. 10th century – sea-going junk ships built in China. Late 10th century – Kamal invented in Arab world.