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TIL the Peking University in Beijjing has developed “smart tags”; small inexpensive tabs that stick to food packaging and change color when it goes bad.

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yQMpw TIL 2Pac wrote his verse for Bone Thugs-N-Harmony's "Thug Luv" in 111 seconds.
4YZX TIL Since the dawn of civilization, roughly 12,000 B.C., to 2003 A.D., only 5 exabytes (5,000,000,000,000,000,000 bytes) of data has been created. Now, with the rise of the Internet’s influence in our daily lives, we produce this amount of data every two days.
l7B95 TIL that the biggest solar installation in the city of Perth (Australia) is at the city zoo. It powers 30% of the site and has panels on top of areas like the parking lot, elephant barn and reptile house.
69Wjm TIL The box that shows the score/time on screen during sports games was first used in England in 1992. The US started using it during the 1994 FIFA World Cup and it's been a fixture ever since. Before then, the score and time was only shown on screen sporadically.
6EGa8 TIL that Alexandre Dumas (Author of The Three Musketeers, etc.) was the son of Thomas-Alexandre Dumas, hero of the French Wars of Revolution and the highest ranking officer of African descent ever to serve in a European army