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If you are having trouble viewing this email with images below, click here. |  | |  | | | On April 16, 1943, Swiss chemist Albert Hofmann stumbled upon -- or tripped over, if you will -- the psychedlic properties of the synthetic drug LSD. What could have inspired the CIA to use American citizens as guinea pigs for its own drug research? | | | | | Tax day is approaching, but you aren't worried. After all, you're carrying your secret weapon right in your purse. No, not your W-2, silly -- your smartphone! | | |  | | |  | | | Project STARGATE may sound like something out of a science fiction novel, but for years taxpayer cash funded experiments with psychic powers. Tune in to learn more about the Cold War psychics -- and why some people believe these programs continue today. | | | | | Nikolaus Otto wasn't the first to design an internal combustion engine, but his improved design made the engine practical and popular. Learn more about Otto's auto-related Stuff of Genius in this episode. | | |  | | |  | | | Even if you're a die-hard fan of "Sesame Street" and "The Muppet Show," you can't possibly know all there is to know about Jim Henson and his work -- or can you? Take the challenge and find out! | | | | |  | | | At Discovery, we value your privacy. If you would like to be removed from this newsletter or other newsletter
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