› added 9 years ago

144

TIL that in China, 1.6 million people die each year from air pollution.

Read more berkeleyearth.org

via reddit.com

8aD7P TIL a soldier in Napoleon's army invented "night writing" in the early 1800s so soldiers could communicate safely in the dark. It was then adapted and perfected by Louis Braille to give us the tactile writing system known as "Braille", which is used by vision impaired persons worldwide.
r774 TIL: Most mammals larger than a mouse take about 21 seconds to urinate
D5Qj TIL the San Francisco Bay has an average depth of only about “a swimming pool - 12 to 15 feet”
gkWA TIL that according to the Hawaiian creation myth, our universe comes from the wreckage of another, earlier universe and the only creatures that survived from that alien universe are octopuses
rRWZd TIL that Grace Slick of Jefferson Airplane was invited to the White House for a tea party in 1969 and planned to spike President Nixon's tea with 600 micrograms of LSD. The plan was thwarted by White House security.