› added 4 months ago

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TIL that blue light can lead to poor and reduced sleep, but studies have shown that protective glasses can help. Harvard said "It also suggests that shift workers and night owls could perhaps protect themselves if they wore eyewear that blocks blue light."

Read more health.harvard.edu

via reddit.com

ewJk TIL That a 78 year old man has, since the 80’s, been building a doomsday shelter that can house 500 people, is heavily fortified, runs on internal generators, and has a decontamination room, a radio station, and a chapel. Also anyone is welcome free of charge.
9YlE7 TIL that Walmart has a lower acceptance rate than Harvard. Harvard boasts a fancy 5.2 percent admittance rate, but it's beaten badly by Walmart's minute 2.6% of applicants being accepted.
R7e9a TIL There is a hotel in Sweden made entirely out of ice. It is rebuilt every year.
mWJM TIL the Netherlands arrested a Russian diplomat for mistreating his children. Two weeks later, a senior Dutch diplomat was beaten up in his security-heavy home in Moscow by anonymous thugs.
5VZB TIL that Thomas Edison said he would give Nikola Tesla 50,000 dollars if he could redesign Edison’s inefficient motors. Tesla did this, but Edison told him it was a joke afterwards, crushing Tesla.