r/todayilearned 9h ago Silver

TIL about the lia radiological accident, where three Georgians discovered two abandoned radioactive sources in the forest around which "there was no snow for about a 1 m (3.3 ft) radius, and the ground was steaming", they then decided to use them as heat sources for the night. One died.

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14.2k Upvotes

r/todayilearned 13h ago

TIL Certain types of fly larvae are ideal for treating gangrene because they feed on dead and infected tissue but leave healthy tissue alone. However, because of the nature of this type of treatment, many people are reluctant to try it.

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4.3k Upvotes

r/todayilearned 12h ago

TIL William Stoughton, the chief judge of the Salem Witch Trials, sentenced 19 men and women to death during the trials despite not having any training, or education, in law.

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2.4k Upvotes

r/todayilearned 13h ago

TIL about Narbacular Drop, a puzzle game made by students at DigiPen University of Technology, which emphasized the usage of portals to solve puzzles; the entire team was later hired by Valve Software and would go on to make Portal

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2.9k Upvotes

r/todayilearned 6h ago

TIL about Operation Bernhard. During WWII, Germany attempted to bring about the collapse of the British economy by forging ≈£130 million in British bank notes. The notes are considered among the most perfect counterfeits ever produced, and are very difficult to differentiate from legitimate notes.

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512 Upvotes

r/todayilearned 23h ago Wholesome Silver

TIL about the Attack of the Dead Men, a WWI battle where chlorine and bromine gas poisoning gave Russian soldiers the appearance of zombies. Russia won the battle when their appearance frightened off the attacking Germans.

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46.4k Upvotes

r/todayilearned 18h ago

TIL Barry Bonds record breaking home run ball was donated to the baseball hall of fame branded with an asterisk

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3.8k Upvotes

r/todayilearned 20h ago

TIL it took around 3 billion years for the very first single-celled organisms to eventually evolve into basic animal life forms. For comparison, dinosaurs were around for about 165 million years, modern humans have been around for 300,000 years.

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5.2k Upvotes

r/todayilearned 7h ago

TIL: Those chrome-like crater wounds in Terminator 2 were expanding foam rubber, not CGI

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352 Upvotes

r/todayilearned 3h ago

TIL coconuts were "relatively common" in medieval England. In one instance from 1259, the Master of Sherborn Hospital willed a coconut cup to his niece.

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133 Upvotes

r/todayilearned 5h ago

TIL that one of the top convenience stores in Japan was founded in Ohio, and that there are now only 2 locations open in the United States

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81 Upvotes

r/todayilearned 6h ago

TIL Steve Jobs wanted the original iPhone to not have a SIM card slot according to Former iPod VP. Stating that he didn't want to have another hole in it.

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78 Upvotes

r/todayilearned 5h ago

TIL the Imperial Library of Constantinople held thousands of ancient Roman and Greek texts for ~1000 years. Most of the library was lost over time due to war and fires, with the Archimedes Palimpsest a notable survivor

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40 Upvotes

r/todayilearned 23h ago

TIL The City of Sanibel Island was founded by 3 former CIA spies.

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1.1k Upvotes

r/todayilearned 17h ago

TIL that Toto the Dog from The Wizard of Oz was replaced with a cow in it's 1903 adaption, due to the difficulty of training animals for the stage.

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286 Upvotes

r/todayilearned 3h ago

TIL: Regina Hall (Brenda from the "Scary Movie" franchise) wanted and tried to become a Catholic Nun in 2010, but was rejected by the order.

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21 Upvotes

r/todayilearned 1d ago

TIL that since 2002, the American National Archives stores important national documents such as the Declaration of Independence and the Constitution within argon-filled cases to inhibit their degradation.

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3.4k Upvotes

r/todayilearned 10h ago

TIL that five structure that were either directly inspired by or modelled after the London, Crystal Palace were also destroyed by fire.

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52 Upvotes

r/todayilearned 11h ago

TIL In 2010, Drs. Torres and Luckham debuted their spray-on fabric in a fashion show at Imperial College London. The science was inspired by traditions of textile-making, like felt, where fibers are bound instead of stitched or woven.

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54 Upvotes

r/todayilearned 1d ago Helpful

TIL that breast cancer used to be known as "Nun's disease" due to the higher prevalence amongst nuns, who were at increased risk due to their celibate lifestyle. An association between reproductive history and cancer risk wasn't proven for about 250 years after it was associated with nuns.

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22.4k Upvotes

r/todayilearned 1d ago

TIL the famous silent film Nosferatu (1922) was given an unauthorized rerelease with sound in 1930 that used previously unreleased footage. This version survives today, albeit without sound, but has never been released on home video.

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1.4k Upvotes

r/todayilearned 17h ago

TIL Serpent D'Océan is a sculpture made of aluminium, 130m in length. It represents the skeleton of an immense imaginary sea serpent, whose vertebrae undulate to end in an open mouth.

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133 Upvotes

r/todayilearned 9h ago

TIL Maitotoxin-1 is an extremely powerful and potent biotoxin produced by the dinoflagellate species Gambierdiscus toxicus. It has a LD50 of 130ng/kg in mice and it produces one of the most complex and largest non-protein and non-polysaccharide molecules by organisms.

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27 Upvotes

r/todayilearned 20h ago

TIL There are fossilised plants in Greenland under 1.4 km of ice.

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185 Upvotes

r/todayilearned 1d ago Wholesome Helpful

TIL in 2016 a man ate a ghost pepper in an eating contest and drank 6 glasses of water to cool off. He vomited so much he tore a hole in his esophagus and was rushed to a hospital where doctors found his left lung collapsed. He spent 23 days in the hospital and was sent home with a gastric tube.

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71.5k Upvotes