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TIL that Tornadoes in the Southern Hemisphere rotate clockwise, while tornadoes in the Northern Hemisphere rotate counterclockwise.

Read more education.nationalgeographic.org

via reddit.com

PYRmV TIL of the Panjandrum, a weapon consisting of large wheels propelled by rockets and holding explosives. During final testing the rockets broke free in all directions, the wheels began chasing military observers, and admirals/generals were forced to dive into barbed wire. It was never used in battle.
DQJkP TIL the US government tried to control the relentless Oregon dunes by planting European beachgrass starting in the 1920s — a geo-engineering project that inspired Frank Herbert’s creation of the Dune universe. However, the Oregon Dunes Restoration Collective sees the sand as a threatened resource.
b97BZ TIL that in 2007, German police identified the DNA of a woman at six murders. Fearing this unknown killer, they offered a 300,000 euro reward for her capture. In 2009, she was identified. She worked at the factory that manufactured the DNA swabs.
e0V1E TIL that if a child swallows a button battery, it should be given honey every 10 minutes to minimize internal burning. The honey forms a protective barrier and neutralizes alkaline levels, resulting in less severe and more superficial burns.
ZpYPY TIL about uranium glassware, where small samples of uranium were melted into glass before forming to create a wider range of colors. This practice stopped in the 40s and pieces now are highly sought by collectors.