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TIL that it's possible to rejuvenate cells. Scientists were able to restore vision in old mice with this technic.

Read more nature.com

via reddit.com

GAkdJ TIL that in 1795, the British Government began requiring hair powder users to pay a 1 Guinea annual fee (roughly £100 pounds today) or face substantial fines. In its first year, the tax raised £200,000. By the time it was repealed in 1869, it yielded an annual revenue of £1,000.
Eg4W TIL that there is a Hadith in Islam that states “the ink of a scholar is more holy than the blood of a martyr”.
0N7y TIL that in the 1966 film adaptation of “Fahrenheit 451” the credits are spoken, not read, in keeping with the film’s theme of destruction of reading material.
J1p64 TIL: According to a scientific study, ADHD individuals react to stimulants such as amphetamines differently, often in a positive way improving symptoms by 70% and improving study in college students with ADHD. However, most stop using to disastrous effects and were more risky behavior prone.
Jk48 TIL that to shoot the candlelight-only scenes in Barry Lyndon, Stanley Kubrick used rare f/0.7 camera lenses manufactured by Carl Zeiss for NASA. Zeiss made only ten of the lenses; he sold three to Kubrick and six to NASA, who used them in the Apollo program to photograph the dark side of the moon.