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TIL that the world's oldest mouse, Yoda, reached the age of 4 years in a pathogen-free environment at the University of Michigan, living with his cage mate Princess Leia. 100-year-old people are much more common than 4-year-old mice.", said his lab director.

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via reddit.com

xv7o TIL when Einstein and his former student Leó Szilárd read in a newspaper that a family was killed because of a faulty seal in their refrigerator (with toxic ammonia),they decided that they would invent a refrigerator without moving parts,hence no seals. This became the Einstein-Szilard refrigerator
kQ8W TIL in July 2013, Thailand began planting millions of trees by dropping “seed bombs.” The five-year pilot project utilizes aerial reforestation to boost forest regeneration by 2017.
D197P TIL Researchers Turn Spinach Leaves Into Beating Heart Tissues
xkoD TIL when a woman is attracted to a man, she speaks in a higher pitch than normal.
gd9A TIL a 32 year long study found that obesity spread through social connections, and that a person’s chances of becoming obese increased by 57% if he or she had a friend who became obese