› added 9 months ago

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TIL: The first smart home with a central control panel was released in 1975. Instead of communicating with smart devices wirelessly, it was physically hard wired throughout the house directly into the smart devices.

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xVXdo TIL the average $1 bill has been contaminated with vaginal bacteria, microbes from mouths, DNA from pets and viruses and drugs
6E4El TIL Stalin was hit by a horse-drawn carriage twice as a child, which led to permanent damage of his left arm. This injury exempted him from fighting in WW I where he would have likely died. -
b9DyN TIL that a pet bird once helped solve a murder.
loZpN TIL Eratosthenes calculated the circumference of the earth ~2200 years ago, and was damn close to the accepted value today. Let Carl Sagan tell you a story.
XxBR TIL that humans used crop rotation 8,000 years ago. As far back as 6000 BC, farmers alternated planting crops each year. They did not understand the chemistry, but knew that doing so kept the soil healthy for good harvests.