› added 12 years ago

174

TIL firefighters used to dip their beards in water and breathe through the wet hairs clenched between their teeth before breathing apparatuses were invented.

Read more my.firefighternation.com

via reddit.com

ZpLxo TIL of Gravastars. They’re theoretical alternatives to Black Holes consisting of a thin layer of ultra-relativistic matter surrounding an inner core of compressed deSitter spacetime.
E1d0V TIL: Will Smith's first name is Willard, not William. He also actually was born and raised in West Philadelphia.
yQ47p TIL the first song Joshua Radin ever wrote and recorded (on his roommate’s computer) was ‘Winter’, which was featured at the end of arguably the best Scrubs episode, ‘My Screw Up’. He was friends with Zach Braff because they went to Northwestern together. It launched his music career.
awYNL TIL that while orbiting comet 67P/Churyumov Gerasimenko, the Rosetta probe observed landslides, collapsing cliffs, as well as boulders tens of meters in size being thrown over 100 meters by violent geological activity.
e06lk TIL that a brother-sister duo in Iceland would have different surnames. As a surname; the boy gets his father's first name with a '-son' in the end, the girl also gets the father's first name but with a '-dottir' in the end. Ultimately they end up having different surnames.