› added 2 years ago

113

TIL that medieval monks inadvertently documented some of the largest volcanic eruptions in history by studying historical observations of lunar eclipses.

Read more interestingengineering.com

via reddit.com

R5RX1 TIL rowing increases parts of the heart to enlarge so it can pump more blood. Because of its similarities to strength training, the exercise increases blood pressure and strengthens heart walls as well. Most sports only show one change or the other, but rowing shows both.
a8WML TIL Larry Ellison founder of oracle owns 98% of the sixth biggest Hawaiian island, Lānaʻi
kOJ4g TIL that Keurig K-Cups generate 10 times the solid waste that would be generated from a standard drip brewer and most of that waste isn't recyclable. Co-founder John Sylvan said, "I feel bad sometimes that I ever did it.”
69dZl TIL The earth's circumference is roughly 40,000km because the metre was based off the circumference of earth. The metre was originally a ten-millionth of the distance from the North Pole to the equator, 1/4th of the circumference. Now a metre is defined by the travel of light in caesium frequencies
4XdNa TIL In 2016 the oldest living leap year baby celebrated her 25th birthday on her 100th year of life