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TIL Michael Jordan makes hundreds of millions of dollars per year in passive income as a result of his deal with Nike

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OgvL TIL that the Inca Empire lasted less than 100 years
NXeQe TIL a pair of dogs were awarded UK's Dickin Medal for guiding their owners and others to safety during the Twin Towers 9/11 attacks
JYvvm TIL that cats moon people and other cats to say hello.
7r9gX TIL Hydrogen-alpha filters used for looking at the sun transmit only one specific wavelength of light: a deep red light emitted by hydrogen atoms of the sun. H-alpha filters are much more expensive than white light filters. The least expensive ones start at about $700
r7Wd TIL that the International Space Station is the most expensive object ever built at $160 Billion.