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The incident was witnessed by the daughter of Ahmed Nejib Chebbi, another prominent political prisoner. Published On 23 Jul 202623 Jul 2026 An intense heatwave has worsened the already harsh conditions faced by inmates at Tunisia’s Mornaguia prison and recently caused jailed opposition leader Rached Ghannouchi to temporarily lose consciousness, according to the daughter of…
I knew that we can solve this famous physics puzzle by directly inferring a quadratic expression from the recursive structure of the resistors. Today in revising calculus I realized that I can also solve this puzzle by explicitly constructing a convergent sequence of "sub-ladders". I posted my solution just to share my small personal Eureka…
Bright flares are visible near the event horizon of Sagittarius A* Photo by NASA/CXC/MIT/F.K.Baganoff/Getty Images The centre of our galaxy is a strange and chaotic place, but we may finally have an explanation for the unusual stars that orbit there. Our supermassive black hole, Sagittarius A*, is surrounded by three populations of stars, all strikingly…
A rare type of meteorite known as a CO chondrite was likely the object that slammed into Earth 66 million years ago and triggered the extinction of about 75 percent of all species, including every non-avian dinosaur. Researchers from the University of British Columbia (UBC), Paris, Brussels, and Vienna reached that conclusion by analyzing nickel…
