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Steve Jefferts and Tom Heavner beside the NIST-F2 atomic clock in the United States, in 2014.Basic science · Nov 1, 2026Atomic clocks: why our time depends on a networkThe alert over the clocks at the Paris Observatory highlights an essential infrastructure. The atomic second, world time and GPS: three concepts to distinguish.A black-and-white rugby ball resting on a grass pitch.Sport · Nov 1, 2026Rugby: hip-drop tackles, a knee on the ground — what’s really changingHip-drop tackles are explicitly included in the dangerous play law from 1 November 2026. A knee on the ground before contact is covered by a separate reminder. Two actions, two dates, and sanctions that cannot be judged from a single image.A white-and-blue AVE train beneath overhead wires, with a castle on a hill in the background.Europe · Oct 31, 2026High-speed rail in Spain: what the record number of lines doesn’t tell usThe EU’s largest dedicated network, increased competition and cheaper tickets: Spain’s results are real. The disruption in 2026 also shows its limits.Façades of the Paris Courthouse seen from Boulevard du PalaisFrance · Oct 29, 2026France: understanding immediate appearance proceedings after lootingSevere criminal law, rapid proceedings, sentences put into effect: three realities to distinguish before describing justice as lenient or rushed.Official portrait of ESA astronaut Sophie Adenot at NASA’s Johnson Space Center in 2025.Space · Oct 26, 2026Why Star Wars spacecraft don’t look like real rocketsStaged rockets, the heat of atmospheric re-entry, life on board and the speed of light: what physics really allows spacecraft to do.Natural history illustration of a pike swimming beneath water lilies.Nature and environment · Oct 26, 2026Pike: understanding a predator through the habitats it usesThe pike’s shape explains its ambush-hunting style. Its reproduction also highlights the importance of aquatic vegetation, floodplains and links between aquatic environments.TGV V150 trainset on the LGV Est during the 2007 record run.Innovation · Oct 26, 2026603 or 574.8 km/h: why train records should be compared with careJapan’s SCMAGLEV and the TGV V150 crossed two thresholds in trials. One uses magnetic levitation, the other wheels: their performance does not describe a commercial journey.Very pale coral in the foreground of an underwater reef, archive photograph.Nature and environment · Oct 25, 2026Bleached corals: why contact with a healthy clone speeds up their recoveryAn experiment at Stanford enabled five bleached fragments to recover through contact with genetically identical corals. The results are promising, but still limited to the laboratory.A boxer skips in front of a mirror in a gym, in an archive photograph.Sport · Oct 25, 2026Why do boxers skip so much?Skipping works on footwork, coordination and stamina, three qualities that are useful in the ring. But it does not replace technique or tactical training.Lewis Hamilton in a Ferrari during qualifying for the 2025 Italian Grand Prix, archive photoMotorsport · Oct 20, 2026F1: from the clock to the gridElimination in Q1, a hindered lap, a penalty or a pit-lane start: qualifying measures speed, but does not always determine the starting order.Hand holding a television remote control, illustration from 2016TV series · Oct 20, 2026Subtitles: words in time with the seriesReading time, cuts and consistency between episodes: Netflix’s guidelines reveal the decisions behind the words displayed on screen.White USB-C connector photographed in close-upTechnology · Oct 1, 2026USB-C: choosing the right charger also means checking the wattageLaptops joined the EU’s common charger rules in April 2026. The shape of the plug is no substitute for reading the specifications.
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