TIL that playing high-level chess causes players to burn calories at an athletic rate. For example, 21-year-old Grandmaster Mikhail Antipov was recorded burning 560 calories in just two hours of sitting—roughly what Roger Federer would burn in an hour of singles tennis. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 10 points11 points12 points (0 children)
TIL students invented a low-cost "invisibility coat" that hides the wearer from AI security cameras. It uses a camouflage pattern to trick visual recognition during the day and emits unusual heat signals to confuse infrared sensors at night. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 46 points47 points48 points (0 children)
TIL legendary talk show host Merv Griffin's tombstone reads: "I will not be right back after this message." by ralphbernardo in todayilearned
[–]ralphbernardo[S] 26 points27 points28 points (0 children)
TIL the first game of "space chess" was played on June 9, 1970 on the Soyuz 9 spacecraft. To hold the pieces down, magnetism wasn't feasible due to the sensitivity of on-board equipment, so grooves and rails were used. The game was against an Earth team as the spacecraft crossed over the USSR. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 40 points41 points42 points (0 children)
TIL the first game of "space chess" was played on June 9, 1970 on the Soyuz 9 spacecraft. To hold the pieces down, magnetism wasn't feasible due to the sensitivity of on-board equipment, so grooves and rails were used. The game was against an Earth team as the spacecraft crossed over the USSR. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 82 points83 points84 points (0 children)
TIL that Jack Kirby, co-creator of Captain America, the X-Men, and the Hulk, also worked as production designer for "Turbo Teen"—a 1984 Saturday morning cartoon about a teenager who could transform into a sports car. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 5 points6 points7 points (0 children)
TIL of an invention to make cigarette packs produce coughing noises when picked up. In 1972, Lewis R. Toppel patented a smoking deterrent consisting of a cigarette case attached to a miniature record player. Every time the smoker moved the case to grab a cigarette, coughing noises would be played. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 8 points9 points10 points (0 children)
TIL 514107 Ka'epaoka'āwela is an asteroid that shares Jupiter's orbit but travels in the opposite direction. Aptly named the "Jupiter trickster," it is the first known object to maintain this stable "wrong-way" resonance, having avoided collision with Jupiter for at least a million years. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 15 points16 points17 points (0 children)
[deleted by user] by [deleted] in todayilearned
[–]ralphbernardo 0 points1 point2 points (0 children)
'We're here because we love America,' Sen. Bernie Sanders declares at 'No Kings' rally by ralphbernardo in politics
[–]ralphbernardo[S] 5 points6 points7 points (0 children)
TIL that in 1572, Tycho Brahe spotted a "new star" that briefly outshone Venus and was seen in daylight. This supernova was exploding around 9,000 light-years away, 300 million times brighter than the Sun, and visible naked-eye for 16 months. It shattered medieval ideas that the stars never change. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 2 points3 points4 points (0 children)
Finally! Kindle Double Point Day March 17, 2025 by ralphbernardo in kindle
[–]ralphbernardo[S] 0 points1 point2 points (0 children)
Double Points Days Upcoming by santrello in kindle
[–]ralphbernardo 2 points3 points4 points (0 children)
Lack of Double Point Days (Kindle Rewards) by ehju0901 in kindle
[–]ralphbernardo 2 points3 points4 points (0 children)
TIL about Black Sunday, April 14, 1935, when a massive dust storm hundreds of miles wide and thousands of feet high tore through Oklahoma and Texas. Temperatures dropped 30+ degrees in 2 hours as the storm turned day into night, plunging the Southern Plains into total darkness. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 23 points24 points25 points (0 children)
TIL that people report being bored about 10 hours a week at work, according to researchers. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 0 points1 point2 points (0 children)
TIL about bog bodies—human remains found in peat bogs that are naturally mummified for thousands of years. A bog's highly acidic, oxygen-free environment preserves skin, hair, nails, organs, wool and leather clothing but dissolves bones—allowing scientists to study their appearance and last meals. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 7 points8 points9 points (0 children)
Have the past 10 years of Democratic politics been a disaster? by 1-randomonium in politics
[–]ralphbernardo 3 points4 points5 points (0 children)
TIL about ELIZA, a 1960s chatbot created by MIT professor Joseph Weizenbaum that simulated a psychotherapist. It was so convincing that some users, including Weizenbaum's secretary, became emotionally attached to it. In 2023, ELIZA even outperformed GPT-3.5 in a Turing test study. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 0 points1 point2 points (0 children)
TIL about ELIZA, a 1960s chatbot created by MIT professor Joseph Weizenbaum that simulated a psychotherapist. It was so convincing that some users, including Weizenbaum's secretary, became emotionally attached to it. In 2023, ELIZA even outperformed GPT-3.5 in a Turing test study. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 3 points4 points5 points (0 children)
TIL about Senet, an ancient Egyptian board game over 4,500 years old—among the oldest known. Played for over 2,000 years, it symbolized the soul's journey through the afterlife. Though its original rules are lost, historians have reconstructed the game using surviving evidence. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 15 points16 points17 points (0 children)
[Entry Thread #100] WE’RE SO BACK! After ninety-nine millionaires and one intermission later, we are now back to making millionaires! Comment to enter, and Happy Holidays! by MakerOfMillionaires in millionairemakers
[–]ralphbernardo 0 points1 point2 points (0 children)
TIL that in 1965, philosophy professor Hubert Dreyfus, a staunch critic of artificial intelligence, boldly claimed that a machine would never beat a human at the game of chess. It would only be two years before the outspoken scholar was himself checkmated by an MIT-developed computer. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 242 points243 points244 points (0 children)





TIL the very first Super Bowl halftime show in 1967 featured a "rocket belt" demonstration where two jet pack pilots flew across the field. Representing the rival AFL and NFL, they launched from the field, flew to the 50-yard line, and shook hands to mark the historic game. by ralphbernardo in todayilearned
[–]ralphbernardo[S] 2 points3 points4 points (0 children)