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TIL that attaching green LED lights to nets used by small-scale fisherman can reduce the number of green sea turtle deaths by 64 percent. Without affecting the number of fish caught.

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yVd4w TIL The Hindenburg, the largest aircraft ever built, was partially constructed out of material salvaged from R101, a British airship that had previously held the same distinction, after it was destroyed in a fatal crash in 1930
neamW TIL that teen suffered third-degree burns after a brief encounter with a giant hogweed while gardening for his summer job. Giant hogweed is federally listed as a dangerous, noxious plant, and this is because contact with its sap can cause the skin to be extra sensitive to sunlight.
l7pXr TIL of the Crazy Horse Memorial, a mountain carving monument of an Oglala Lakota warrior, has been under construction about 10 mi from Mt. Rushmore since 1948. Crazy Horse's face is about 50% large than those of the Mt. Rushmore presidents.
7r9Rr TIL Russia first tried to sell Alaska to the tiny state of Liechtenstein, who declined the offer, before selling it to America.
6wGw TIL that the Grateful Dead had their own chemist who would tour with them, and supply them with LSD