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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]
The fact that something invented over 150 years ago can still seem ingenious is impressive. This mannequin, which can adjust to be just about any size a human can be, is an example of such an ...
500 BC – Pills were used. They were presumably invented so that measured amounts of a medicinal substance could be delivered to a patient. 510–430 BC – Alcmaeon of Croton scientific anatomic dissections. He studied the optic nerves and the brain, arguing that the brain was the seat of the senses and intelligence.
The fact that something invented over 150 years ago can still seem ingenious is impressive. This mannequin, which can adjust to be just about any size a human can be, is an example of such an ...
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 ...
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.
A Ferris wheel is a non-building structure, consisting of an upright wheel with passenger gondolas attached to the rim. Opened on June 21, 1893, at the Chicago World's Fair, the original Ferris wheel was invented two years earlier by the Pittsburgh bridge-builder George Washington Gale Ferris Jr. in 1891. [19] 1891 Dow process
Petroleum as fuel: The use of petroleum dates from ancient China more than 2,000 years ago. In I Ching, one of the earliest Chinese writings cites the use of oil in its raw state without refining was first discovered, extracted, and used in China in the first century BC. In addition, the Chinese were the first to use petroleum as fuel as the ...