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Genetic evidence from body lice suggests a range of dates centering over 100 thousand years ago. [28] The first bone scrapers appropriate for scraping hides to make supple leather were found in Morocco dating to 90–120,000 years ago. [29] [30] 164 kya – 47 kya: Heat treating of stone blades in South Africa. [31]
This is a list of obsolete technology, superseded by newer technologies. Obsolescence is defined as the "transition from available to unavailable from the manufacturer in accordance with the original specification." [1] Newer technologies can mostly be considered as disruptive innovation. Many older technologies co-exist with newer alternatives ...
The Middle Paleolithic, approximately 300,000 years ago, saw the introduction of the prepared-core technique, where multiple blades could be rapidly formed from a single core stone. [8] The Upper Paleolithic , beginning approximately 40,000 years ago, saw the introduction of pressure flaking , where a wood, bone, or antler punch could be used ...
The principle is applied in wirephoto and television technology for a short time. Selenium is used in light meters for the next 50 years. Cinématographe camera by the Lumière brothers in 1895 (ref 86.5822) at the French Museum of Photography in Bièvres, Essonne, France. 1895: Auguste Lumiere's cinematograph displays moving images for the ...
The Silurian hypothesis is a thought experiment, [1] which assesses modern science's ability to detect evidence of a prior advanced civilization, perhaps several million years ago. The most probable clues for such a civilization could be carbon , radioactive elements or temperature variation.
"If you look at your computer or phone camera screen with a strong magnifier, they both rely on exactly the same technology," Osterman explains. #7 East Face, Mont-Saint-Michel, Normandy, France ...
Many people dream of becoming rich and watching their financial troubles disappear. This is just as true now as it was 100 years ago -- even if the way people go about it has changed. Maximize Your...
5. Boeing (BA) Years of returns: 89 Return per $1: $212,206 Cumulative compound return: 21,220,526 percent Annualized compound return: 14.7 percent Boeing is a global aerospace company that ...