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TIL that radium passivates by forming a nitride film, unlike most metals, which form an oxide film

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kOkeW TIL that the Roman Emperor Commodus had a bath attendant thrown into an oven after he found his bathwater was lukewarm. Due to repeated attempts on his life, he often had Roman citizens killed for making him angry.
8aD7P TIL a soldier in Napoleon's army invented "night writing" in the early 1800s so soldiers could communicate safely in the dark. It was then adapted and perfected by Louis Braille to give us the tactile writing system known as "Braille", which is used by vision impaired persons worldwide.
8GxZ TIL That artificial photosynthesis may one day be incorporated into all building materials.
BrZWr TIL André Roussimoff (aka Andre the Giant) has been unofficially crowned "the greatest drunk on Earth" and is said to have once drank 156 16-fl-oz beers in one sitting
VBXgp TIL that oceanic life benefits by dumping iron into it. Not only in artificial reef habitat in but also as a food source to phytoplankton. Phytoplankton can drastically reduce our carbon levels and restore species numbers up the food chain.