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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 ...
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.
20th Century Fox presents in New York on an 8 m × 4 m big screen the first widescreen movie. The radio station Witzleben begins in Germany with the regular broadcasting of television test broadcasts, initially on long wave with 30 lines (= 1,200 pixels) at 12.5 image changes per second. It appear first blueprints for television receiver.
From the first Apple computer to the COVID-19 vaccine, here are the most revolutionary inventions that were born in the U.S.A. in the past half-century.
Pages in category "20th-century inventions" The following 126 pages are in this category, out of 126 total. This list may not reflect recent changes. A.
Also, by the end of the 20th century, uncrewed probes had visited the Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and various asteroids and comets. The Hubble Space Telescope , launched in 1990, greatly expanded our understanding of the Universe and brought brilliant images to TV and computer screens around the world.
3rd century BC: Archimedes relates problems in geometric series to those in arithmetic series, foreshadowing the logarithm. [46] 3rd century BC: Pingala in Mauryan India studies binary numbers, making him the first to study the radix (numerical base) in history. [47] 3rd century BC: Pingala in Mauryan India describes the Fibonacci sequence. [48 ...
The 20th century changed the world in unprecedented ways. The World Wars sparked tension between countries and led to the creation of atomic bombs, the Cold War led to the Space Race and the creation of space-based rockets, and the World Wide Web was created.