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TIL Albrecht Unsöld studied the star Tau Scorpii and discovered its surface temperature of 32,730 K, creating the first detailed analysis of a star other than the Sun. During the Nazi period, Unsöld stayed in Germany and was drafted as a meteorologist

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bxDp TIL: The Rabies symptoms, hydrophobia, extra saliva, and difficulty swallowing are results of the virus settling in the salivary glands for the purpose of easier transmission through biting. The infected animal’s ability to transmit the virus would be reduced if it could swallow saliva and water.
EQRP TIL that in Poland, near Gryfino, a mysterious forest has 400 pine trees all with a 90 degree bend at the base of their trunks – all northward.
4XJk5 TIL about a type of tinnitus called pulsatile tinnitus, which is where you can hear a pulsing (like your heartbeat) in one or both of your ears. This is typically caused by muscle movements near the ear or blood flow problems in the face or neck.
76rO TIL after the first test preview of Apollo 13 (a film firmly based on true events) one comment card indicated the film had a typical “Hollywood ending” and that the crew would’ve never survived in real life.
m1OgM TIL That Mongolians have by far the most testosterone among nations