› added 7 years ago

347

TIL we never see things as they are now, but as they were in the past, the delay is caused by the time it takes light to reach your eyes. We see the Moon as it was approximately 1.3 seconds in the past, the Sun as it was 8 minutes in the past, the Andromeda Galaxy 2.5 million years in the past.

Read more universetoday.com

via reddit.com

9Dx7 TIL In 1997, the rope snapped during a massive game of tug-of-war, completely cutting off 2 competitors arms. NSFW
e040J TIL that Orcas/Killer Whales are “apex predators”, which means no other animal feeds on them.
7BnM TIL: Thomas Edison offered Nikola Tesla $50,000 to improve his DC motor. Upon completion, Edison failed to pay and scoffed, “You don’t understand American humor.”
NXp9N TIL that if you laid out an adult's circulatory system, the blood vessels would total over 60,000 miles. That equals more than twice around the world.
x6oo1 TIL that when Ireland became independent, the government sought to use the traditional image of the Trinity College harp as its national emblem. However, Guinness trademarked the harp decades before, so the government had to adopt a mirrored image.