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Gitanjali Rao is an American inventor, author, social activist, and a STEM student and advocate.. Rao won the Discovery Education 3M Young Scientist Challenge in 2017 [1] [2] and was recognized on Forbes 30 Under 30 for her innovations. [3]
However, other inventors before Bell had worked on the development of the telephone and the invention had several pioneers. [430] 1877: Thomas Edison invents the first working phonograph. [431] 1878: Henry Fleuss is granted a patent for the first practical rebreather. [432] 1878: Lester Allan Pelton invents the Pelton wheel.
Image credits: astarisaslave #8. TIL in South Korea, only blind people can get a masseur's license. This law was established in 1912, to help visually impaired people earn a living.
YouTube would give free access to its users, the more users, the more profit it can potentially make because it can in principle increase advertisement rates and will gain further interest of advertisers. [339] YouTube would sell its audience that it gains by free access to its advertising customers. [339]: 181
And the Instagram page ‘Unbelievable Facts’ is one of the best places to do just that. Every day, they share fascinating trivia, building a collection that now includes over 10,000 unique facts.
BSc meteorologist Janice Davila tells Bored Panda that one of the most unknown facts from her field of expertise is that weather radars are slightly tilted upward in a half-degree (1/2°) angle.
Engineers during World War Two test a model of a Halifax bomber in a wind tunnel, an invention that dates back to 1871. The following is a list and timeline of innovations as well as inventions and discoveries that involved British people or the United Kingdom including predecessor states in the history of the formation of the United Kingdom ...
A timeline of United States inventions (1890–1945) encompasses the innovative advancements of the United States within a historical context, dating from the Progressive Era to the end of World War II, which have been achieved by inventors who are either native-born or naturalized citizens of the United States.