r/todayilearned 10h ago Silver Wholesome Helpful

TIL that Ben Franklin's invention of the lightning rod was blamed by church leaders for the 1755 Cape Ann earthquake off the coast of Colonial Massachusetts — as his "heretical rods" interfered with the "artillery of Heaven" & deprived God of using lightning as "tokens of His displeasure."

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23.6k Upvotes

r/todayilearned 3h ago

TIL Dasia Taylor invented color changing sutures that detect infection when she was 17. Her invention uses beets, which change color at different pH levels. After learning about smart sutures that use expensive technology, she set out to create a more accessible solution for developing countries.

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909 Upvotes

r/todayilearned 17h ago Helpful Silver All-Seeing Upvote Wholesome Seal of Approval Wholesome

TIL the SEC pays 10-30% of the fine to whistleblowers whose info leads to over $1m fines

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30.4k Upvotes

r/todayilearned 8h ago

TIL - women’s cigarette holders used the same general description as were used for evening gloves. They were: opera length, usually 16 to 20 inches, theatre length, 10 to 14 inches, dinner length, 4 to 6 inches, and cocktail length, which includes shorter holders.

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577 Upvotes

r/todayilearned 21h ago Wholesome

TIL that Major League Baseball pitcher Ed Porray is the only player in league history to not be born in a country. He was born on a fishing boat in the middle of the Atlantic Ocean on December 5th, 1888. His birth certificate lists "At sea, on the Atlantic Ocean" as his birthplace.

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6.6k Upvotes

r/todayilearned 2h ago

TIL: The smell of rotting potatoes can kill you

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149 Upvotes

r/todayilearned 15h ago

TIL that Jimmy Carter was not a fan of Salman Rushdie's work and wrote a 1989 op-ed calling his book an insult

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589 Upvotes

r/todayilearned 1h ago

TIL In 1629 the English seized almost all of France's territories in North America. The seizure became a legal issue because Quebec surrendered after the peace treaty was already signed, and ultimately the territories were returned in exchange for Louis XIII paying his wife's dowry.

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Upvotes

r/todayilearned 5h ago

TIL the careers of many Los Angeles bands including Dead Kennedys, The Bangles, Guns N' Roses, Metallica, Mötley Crüe, and Hole were launched by a classified ads newspaper called The Recycler.

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86 Upvotes

r/todayilearned 7h ago

TIL In Romance and other European languages, Hellas is named "Greece" after the Grecians, a Hellenic tribe which colonized southern Italy and interacted with the Romans, who used their name to refer to all Helenes.

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85 Upvotes

r/todayilearned 19h ago

TIL about the Löwenmensch or Lion Man of Germany. About 12-in. tall, this statue of an anthropomorphic cave lion is about 35,000 to 40,000 years old and was carved from a mammoth tusk. The oldest statue ever discovered, it was found in the same caves as the earliest musical instruments.

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506 Upvotes

r/todayilearned 1d ago

TIL in 2018, a 34-year-old man blew a hole in his throat by holding his nose and closing his mouth while sneezing. The expulsion of air from a sneeze can propel mucous droplets at a rate of 100 mph. He was given antibiotics and put on a feeding tube for 7 days and recovered with no permanent damage.

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7.4k Upvotes

r/todayilearned 5h ago

TIL Salman Rushdie is the only author to have won a Booker, the Booker of Bookers, and The Best of Booker award.

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40 Upvotes

r/todayilearned 14h ago

TIL in 1987 a news broadcast was interupted by a man pointing a gun at a newscaster, whilst giving him a piece of paper to read which was his manifesto detailing the CIA and aliens. Once the police arrived he immediately put down his gun (which was revealed to be a toy) and was arrested.

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161 Upvotes

r/todayilearned 8h ago

TIL of the Dinner Set Gang, a jewelry heist ring ran by 2 Italian brother-in-laws who would burglarize wealthy couples homes for their jewels during dinner, leaving the rest of their homes deserted. Notable victims included The Flagler, Dupont and Pillsbury families as well as the pianist Liberace.

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36 Upvotes

r/todayilearned 1d ago

TIL that due to ADA standards, elevators going up ding once and elevators going down ding twice to help those with disabilities

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4.1k Upvotes

r/todayilearned 1d ago Silver Take My Energy Helpful

TIL of 'Denny', the only known individual whose parents were two different species of human. She lived ninety thousand years ago in central Asia, where a fragment of her bone was found in 2012. Her mother was a Neanderthal and her father was a Denisovan.

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34.8k Upvotes

r/todayilearned 14h ago

TIL That knitting was used as an espionage tool during WWI.

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81 Upvotes

r/todayilearned 1d ago Silver

TIL Mr. Trash Wheel is an anthropomorphised trash interceptor in Baltimore, Maryland. Mr. Trash Wheel has inspired a series of trash interceptors: Professor Trash Wheel, Captain Trash Wheel, and Gwynnda the Good Wheel of the West; who collects more trash than the rest combined.

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551 Upvotes

r/todayilearned 6h ago

Til that crickets don't actually chirp until they are fully grown

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16 Upvotes

r/todayilearned 18h ago

TIL 50% to 60% of all allergy blood tests give false-positive results. False-positive results show you have an allergy even when you don’t. Skin tests tend to be more accurate.

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162 Upvotes

r/todayilearned 11h ago

TIL that South Africa Airways in 1967 began to use the Amílcar Cabral International Airport for its international flights Europe and America, because its aircraft were prohibited from landing in the vast majority of African countries due a boycott to apartheid.

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35 Upvotes

r/todayilearned 23h ago

TIL talcum powder is made from a material which is often mined from locations with deposits of asbestos

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348 Upvotes

r/todayilearned 6h ago

TIL of a spider that presents from behind a tough, flat, circular shield resembling the cover of a manhole. The ravine trapdoor spider is the common name of a rare, oddly shaped North American spider. This spider looks as though the end of its abdomen, rear segment of the body, had been sliced off.

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12 Upvotes

r/todayilearned 23h ago

TIL that the first practical pneumatic tire was first applied to a tricycle by an Irish veterinarian, John Boyd Dunlop, in 1887 who was trying to give his young son a more comfortable ride on his tricycle, in an effort to prevent the headaches his son had while riding on rough roads.

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250 Upvotes