› added 11 years ago

134

TIL London has a secret, 2nd underground rail network

Read more gizmodo.co.uk

via reddit.com

NXB0N TIL that while lightly roasted coffee contains more caffeine, dark roasts are also more soluble than lighter ones, which means it is easier for the caffeine from a darker coffee roast to wind up in your cup.
wLoe8 Everybody knows not to shine laser pointers in your eye. They could damage your vision! (Emphasis on could, since your eye’s blink reflex would probably protect your retina.) But what if you were an evil villain determined to make a death ray? How many laser pointers would it take to create a deadly weapon?
L0kP TIL that hot dog buns originated because customers were not returning gloves loaned out by the concessionaire to handle the sausages
6E5o8 TIL Cornelius Vanderbilt was the richest man in the world with net worth of US $215 billion (inflation-adjusted 2016). In comparison Jeff Bezos's net worth is US$137 billion (January 2019). By a 1973 family reunion, not one of the 120 Vanderbilt descendants present was a millionaire.
xLM5 TIL an ordinary house in my neighborhood is actually a massive city pumping stations in disguise