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TIL that in 2019, U.S company BIOLIFE4D 3D printed a miniature human heart with many of the same functions and structures as a real, full-sized human heart.

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P1KeZ TIL Debra Houston set the record for world's oldest soap box derby racer at 59 when she competed at the Soap Box Derby National Championships. At first she just wanted to sign up her grandkids to a racing league to get them out of the house but was urged to race due to her small height and weight.
M7en8 TIL that on the atoll of Pinglelap, 10% of the population is affected by total colorblindness, with another 30% being unaffected carriers of the gene. This is due to a population bottleneck caused by a typhoon in 1775 that left 20 survivors on the atoll. One carried the colorblindness gene.
nW9VG TIL the Siege of Sarajevo lasted 1,425 days, the longest siege of a capital city in the history of modern warfare.
r0Q4 TIL Take This Lollipop is an interactive film which accesses viewer’s Facebook profile and locates the viewer’s home from data in profile. It depicts the dangers in posting too much personal info on the Internet. Information gathered is then deleted which makes the film different for each viewer.
YpL6G TIL Piggy banks are not actually named after pigs; they date back to the Middle Ages, when a type of clay – called ‘pygg’ – was used to make pots that could store money.