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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]
Uncrewed torpedo speed claims range from 60 knots (110 km/h; 69 mph) for the British Spearfish torpedo [64] to 200 knots (370 km/h; 230 mph) for the Russian VA-111 Shkval. [ 65 ] ^ a b Ground effect vehicles (a.k.a. "Wing-In-Ground effect vehicles") are classified as maritime vessels, rather than aircraft, by the International Maritime ...
Year Country of site Site Vendor / builder Computer Performance R; 1938 Germany: Personal research and development Berlin, Germany Konrad Zuse: Z1: 1.00 IPS [1] 1940 Z2: 1.25 IPS [2] 1941 Z3: 20.00 IPS [3] 1944 United Kingdom: Bletchley Park: Tommy Flowers and his team, Post Office Research Station: Colossus: 5.00 kIPS [4] 1945 United States ...
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.
1859 - Gaston Planté invented the lead–acid battery, the first-ever battery that could be recharged by passing a reverse current through it. 1860 - first urban horse railway line (a predecessor of trams), opened in Saint Petersburg. [24] 1862 – Étienne Lenoir made a gasoline engine automobile.
Year Event 600 BCE: Ancient Greek philosopher Thales of Miletus described static electricity by rubbing fur on substances such as amber. 1600: English scientist William Gilbert coined the word electricus after careful experiments. He also explained the magnetism of Earth. 1660: German scientist Otto von Guericke invented a device that creates ...
The true story is that it was invented utterly by accident one fateful day more than 70 years ago, when a Raytheon engineer named Percy Spencer was testing a military-grade magnetron and suddenly ...
Times are constantly changing. I am technically part of Gen Z, but I feel like a dinosaur when I speak to tween Zoomers. Technological advancements have caused our world to evolve rapidly, and ...