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TIL the average wind speed in Denmark is 7.6 metres per second, making it the world’s largest wind turbine exporter.

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wogY8 TIL about Ultrasonic cross-device tracking. Audio "beacons" can be embedded into television advertisements. In a similar manner to radio beacons, these can be picked up by smartphones, which allows the behavior of users to be tracked. Humans can't hear these sounds at all.
8LEG TIL Female Indonesian military applicants receive ‘two-finger’ virginity tests, involving doctors inserting fingers into their vagina and anus. Fiancees of male Indonesian military applicants are also subjected to these tests, sometimes conducted by men.
m1Yox TIL that people pass rectal gases in increased quantities at high altitude, known as high-altitude flatus expulsion (HAFE).
xV9Og TIL of Hatty, a Labrador retriever who was sworn in as an IL County "Comfort Dog." Her paw was on a law book as an oath was read. Hatty's job is to comfort sexual trauma victims during testimony and interviews; the dog will work 9 - 5 on up to 200 cases per year. She was trained by prison inmates.
Zp5pQ TIL 17th century England had twerking ("Moulding Cockle Bread" dancing) and moral panics about twerking.