Chimpanzees Use Leaves as Hygiene Tools
Wild chimpanzees have been observed chewing leaves to clean themselves and treat wounds—a behavior once thought uniquely human and a sign of basic health care in animals
Even dim light at night can suppress sleep hormones
Exposure to very low levels of light (~30 lux for 1 hour) can significantly suppress melatonin production, making it harder to sleep.
Hacia el 1300 surgieron los primeros relojes mecánicos en Europa, instalados en campanarios, que revolucionaron la organización urbana y agrícola al medir el tiempo mediante toques de campana
Lensless glasses are a real trend — These purely fashion glasses have no lenses at all and are worn as style accessories in some parts of Asia and by fashion brands, with benefits like no fogging or reflection.
Every two minutes, we take more pictures than all humankind did in the entirety of the 1800s. (Bonus fact: Photography was invented in 1826, that's 200 years ago this year!)
