If two pieces of metal touch in space, they become permanently stuck together.
808
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
Ming-Na Wen, who portrays The Cavalry on Agents of S.H.I.E.L.D., was also the voice of Mulan. And she’s 50 years old.
7
Bats sleep 18-20 hours per day.
5
Not swinging your arms when you walk increases the effort of walking by 12%, the equivalent of walking 20% faster or carrying a 10 kg backpack.
12
Brain freeze is caused by the brain sensing the drop of temperature on your palate and increasing blood pressure in an attempt to save you from freezing.
14
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93