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TIL: After being synthesized by Heinrich Dreser of The Bayer company in 1895, heroin was originally used as a treatment for morphine addiction and The Bayer company marketed it by sending out free samples of it to the public

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e0lXJ TIL that the red liquid seeping out of a cooked rare steak isn’t blood. It is in fact a mixture of a protein called ‘Myoglobin’ and water. Myoglobin helps muscle tissue store oxygen and just like Hemoglobin, contains iron that turns red when it binds with oxygen.
9YbgG TIL On May 5, 1809, Mary Kies' patent for a new technique of weaving straw with silk and thread to make hats was signed by President James Madison. She was the first woman to receive a U.S. Patent
awNxo TIL that the Japan Maritime Self Defense Force (JMSDF, or the modern Japanese Navy) uses the same rising sun naval ensign that the Imperial Japanese Navy used before and during WWII.
4YEJ TIL Agreeableness is the best personality indicator for sustaining a loving relationship
GYBpE TIL researchers discovered that applying a sonogram to a person's skull and stimulating specific brain regions can alter their mood. One researcher described applying it to his own head and later feeling like he had a martini. They hope to develop a sonogram-based device to treat mood disorders.