#horloges

La Chaux-de-Fonds, Suisse, 19 Août 2025

June 1966… Gemini X training 60 years ago... Michael Collins during Gemini X. Collins graduated from the United States Military Academy - West Point Class 1952, joined the US Air Force as a testpilot and was selected in NASA’s third group of astronauts in 1963. Selected as backup for Gemini VII, Collins became prime crew pilot for Gemini X in January 1966.  The first NASA photos showing Michael Collins wearing a NASA-issued Omega Speedmaster are dated April 1966 and in these June 1966 photos Collins wore a Speedmaster 105.003-63 wrist chronograph on long Velcro strap. Interestingly, during the Gemini X mission, Collins wore the NASA-issued Speedmaster on a leather bund-type strap underneath the David Clark space suit. Collins performed a 49-minutes long stand-up EVA (torso outside spacecraft) and an umbilical EVA-spacewalk to retrieve experiments from the Agena Target Vehicle. Collins main task was to perform celestial navigation with a handheld sextant. During his two spaceflight missions, Michael Collins accumulated 11 days 2 hours in space. (Photos: NASA)

Horloges, 1950s.

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The past is in your head. The future is in your hands. ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

INVENTION | Système métrique : une idée ancienne mûrie par quelques précurseurs ► https://j.mp/3dCNwZ9 Si c’est lors des États généraux de 1789 que fut demandée l’uniformité des poids et des mesures pour tout le royaume, l’idée fut évoquée dès le XIVe siècle par le roi Philippe le Long et son conseil, avant que d’être à plusieurs reprises sur le point d’aboutir, sans succès