› added 3 weeks ago

29

TIL that the human body replaces its entire skeleton every 10 years.

Read more ncbi.nlm.nih.gov

via reddit.com

P10LV TIL: "that cats can alter the frequency of their purr and meow to match the cry of a human baby"
8aOVZ TIL: At Major League Baseball parks, one doesn't see local dirt (sandy in Florida, farmland black in the MidWest, etc) but rather a standardized clay-rich orange "infield mix." Over 20 stadiums use dirt "imported" from Slippery Rock, PA. The official dirt is shipped in and mixed with regional sand.
dD4YB TIL at least 58 people have been killed by violent responses to Salman Rushdie's novel The Satanic Verses.
nW68P TIL that the landmark pamphlet "Understanding AIDS" was the single largest mass mailing in American history. Spearheaded by Surgeon General C. Everett Koop, it reached 107 million American households, and set standards for sex education regarding the disease. 80% of people read at least part of it.
nPRd TIL a Baltimore hairdresser helped prove that ancient Roman Vestal Virgins’ hairstyles were not wigs, as was commonly believed, but was instead achieved through the use of needle & thread, which she showed by recreating the hairstyle on a live person for the first time in centuries