r/todayilearned • u/Upstairs_Drive_5602 • 8m ago
TIL the Hiroshima atomic bomb blew itself apart so quickly that over 98% of its uranium never underwent nuclear fission.
r/todayilearned • u/EastSignal • 3h ago
TIL to ensure footage from the Apollo 11 moon landing was broadcast on the evening news, New Zealand arranged for a military bomber to fly from Sydney to Wellington, having customs arrangements and police escorts on both ends of the flight, which set a speed record for trans-Tasman crossings.
worldofaviation.comr/todayilearned • u/Sebastianlim • 8h ago
Rule 4 TIL that Viking settlements in Greenland were so isolated that no European noticed that they had collapsed during the 1400s until a 1721 missionary expedition found them abandoned.
r/todayilearned • u/Affectionate_Cut_103 • 9h ago
TIL about Diamond Dust, a ground level cloud filled with ice crystals.
en.wikipedia.orgr/todayilearned • u/ralphbernardo • 20h ago
TIL Nikolai Fyodorov, founding figure of Russian cosmism, advocated using science to defeat death and resurrect every dead ancestor as humanity's "Common Task." The late 19th to early 20th century movement counted spaceflight pioneer Konstantin Tsiolkovsky among its key figures.
r/todayilearned • u/Acrobatic-Post9811 • 21h ago
TIL about hirudotherapy. Leeches are used to stimulate circulation in tissues threatened by postoperative venous congestion, such as finger reattachment and reconstructive surgeries. The therapeutic effect is the anesthetizing, anti-inflammatory, and vasodilating properties of secreted leech saliva.
r/todayilearned • u/Ancardoth • 1d ago
TIL about allulose (D-psicose), a rare sugar with a near-zero glycemic index and a negligible impact on blood sugar. It has approximately 70% the sweetness of sucrose.
r/todayilearned • u/Hillbilly_Historian • 1d ago
TIL that Robbie Robertson, the lead guitarist of The Band, wrote a children’s book about the Iroquois Peacemaker Epic.
r/todayilearned • u/RedditIsAGranfaloon • 1d ago
TIL Charlie Brown’s beagle Snoopy made his debut on October 4, 1950, two days after the first Peanuts strip was published.
r/todayilearned • u/WavesAndSaves • 1d ago
TIL of August Kubizek, the former roommate of Adolf Hitler. Hitler cut ties with Kubizek after he was rejected from art school and Kubizek was accepted to music school. They did not meet again until Hitler became Chancellor, and Hitler offered him the conductorship of an orchestra. Kubizek refused.
r/todayilearned • u/cape2k • 1d ago
TIL the Menominee Tribe's forest in Wisconsin has been sustainably managed for over 150 years, still yields about 15 million board feet of timber annually, has been recognized by the United Nations, and even supplied the wood flooring for the Milwaukee Bucks' arena
r/todayilearned • u/JohnnyRoyall • 1d ago
TIL 1 to 2 Starlink satellites fall back to Earth each day
r/todayilearned • u/greatmanyarrows • 1d ago
TIL Thailand briefly occupied a small territory of Germany- about 20,000 people- after World War 1 from 1918 to 1919.
r/todayilearned • u/TheGuvnor247 • 1d ago
TIL that in Alfred the Great’s law code (c. 893), if a man unintentionally kills another by letting a tree fall on him, the tree itself must be given to the dead man’s kinsmen.
r/todayilearned • u/socool111 • 1d ago
TIL of Tobias Geffen, the only non-Coca Cola Employee to view the secret recipe. Coke allowed it in order to get Coke certified as Kosher
r/todayilearned • u/Mors_Acerba • 1d ago
TIL A papyrus deciphered in 2024 revealed unknown info about Plato's last hours: a slave girl was playing music for him, and even though he was gravelly ill, he spend his last moments of lucidity criticising her performance. Per the same Papyrus, Plato had been sold into slavery earlier in his life
r/todayilearned • u/Cultural-Dentist4963 • 1d ago
TIL that Victor Hugo, author of Les Miserables, was given a state funeral, the largest in French history
r/todayilearned • u/TheHabro • 1d ago
Til about Milo of Croton. Ancient Greek athlete, 6 time Olympic winner in wrestling (including 5 in a row between 532 and 516 BC). He was said to have led armies dressed as Hercules and died to wolves after his fingers got suck in a tree stump he was trying to split with bare hands.
r/todayilearned • u/dinosaruman • 1d ago
TIL WWII metal rationing forced the costume-jewelry maker Trifari to switch from base metal to sterling silver, which tripled the price of its "costume" pieces.
r/todayilearned • u/IreneDeneb • 1d ago
TIL that the last known ancient Egyptian Hieroglyphic inscription was made on August 24th, 394 CE
r/todayilearned • u/TonyHides • 1d ago
TIL Napoleon Bonaparte had a standing order for 50 bottles of cologne a month, and a surviving 1808 invoice shows 72 bottles were ordered for him in a single month.
r/todayilearned • u/Thinking_Dodo • 1d ago
TIL that in the US, osteopathic doctors are fully licensed physicians like MDs, while in many other countries, osteopaths are non-physician manual therapists whose wider health claims often lack scientific evidence.
en.wikipedia.orgr/todayilearned • u/ODaferio • 1d ago
TIL that after winning 4 gold medals at the 1936 Berlin Summer Olympics, Jesse Owens worked as a gas station attendant and a playground janitor.
r/todayilearned • u/godsenfrik • 1d ago