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The hot comb was an invention developed in France as a way for women with coarse curly hair to achieve a fine straight look traditionally modeled by historical Egyptian women. [44] However, it was Annie Malone who first patented this tool, while her protégé and former worker, Madam C. J. Walker, widened the teeth. [45]
Women inventors have been historically rare in some geographic regions. For example, in the UK, only 33 of 4090 patents (less than 1%) issued between 1617 and 1816 named a female inventor. [ 1 ] In the US, in 1954, only 1.5% of patents named a woman, compared with 10.9% in 2002. [ 1 ]
Marvin P. Middlemark held several patents for his inventions; many were lesser known than his famed Rabbit Ears, such as: a water-powered potato peeler (which failed because when done, a large potato was reduced down to the size of a large marble) and a tennis ball rejuvenator that was designed to bring the bounce back to used tennis balls.
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.
November 3 – Launch of Sputnik 2, with a dog called Laika on board, the first animal sent into orbit. There is no technology available to return it to Earth. December 6 – The United States attempts launch of Vanguard TV3 which fails after just two seconds in the air.
February 13 Max Perutz publishes the structure of hemoglobin. [4]John Kendrew publishes the structure of myoglobin. [5]March 5 – British marine biologist Sir Alister Hardy announces his aquatic ape hypothesis, theorising that swimming and diving for food exerted a strong evolutionary effect partly responsible for the divergence in the common descent of humans and other great apes.
5 March 1960 Alberto Korda: Havana, Cuba The photograph depicts Che Guevara at a funeral for the victims of the La Coubre explosion. The portrait is commonly displayed as a symbol of student protest and revolutionary movements, and has appeared on clothing and other merchandise. [53] [54] [55] [s 1] [s 2] [s 3] [s 4] [s 6] Massacre at ...
Animals. Business. Entertainment. Fitness. Food. Games. Health. ... 30 Color Photos Photographers Took 100 Years Ago That Still Mesmerize Us Today. ... "By the 1960s, portrait studios were ...