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TIL that James Lovelock, an English scientist, performed experiments regarding the cryopreservation of small rodents. His work found that hamsters could successfully be revived with no adverse effects after having 60% of the fluids in their brain frozen. The hamsters were thawed using microwaves.

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dJ4d TIL that emotions and facial expressions are so closely related that people who have had Botox treatment sometimes have difficulty experiencing happiness/sadness.
P18Be TIL In 1969 Colorado tried fracking with a nuclear bomb - it worked, but the oil and gas are too irradiated to be used even today
0wP6L TIL the Vikings are considered to be precursors of modern democracies by political scientists: men and women gathered for assemblies called "Things" (þings) where they decided on laws and punishments for crimes
yVdRJ TIL of The Hawk’s Nest Tunnel Disaster where 100’s of workers died from silicosis after being forced to mine silica without the proper protective equipment. It was the deadliest industrial incident in US history. The site was owned by Union Carbide Corp.
9E7D TIL French preschools serve four-course lunches (including a cheese course) to educate them in taste and stimulate their senses