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And we're not - so far as I know - taking about "free energy" and "death rays" here, but real practical stuff.
Originally shared by annarita ruberto
N. Tesla's Pyromagneto Electric Generator Patented May 13, 1890
Nikola Tesla was an inventor who obtained around 300 patents worldwide for his inventions.
Some of Tesla's patents are not accounted for, and various sources have discovered some that have lain hidden in patent archives.
There are a minimum of 278 patents issued to Tesla in 26 countries that have been accounted for. Many of Tesla's patents were in the United States, Britain, and Canada, but many other patents were approved in countries around the globe. Many inventions developed by Tesla were not put into patent protection.
The drawing below shows the original image of Pyromagneto Electric Generator
► Source>>
https://patentimages.storage.googleapis.com/pages/US428057-0.png
►You can see U.S. Patent 0,428,057 and Tesla's explanation about his eletric generator>> https://www.google.com/patents/US428057
#physics, #HistoryOfScience, #NikolaTesla, #pyromagnetic_electric_generator
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