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Astrophysics --- Astronomy --- Astronomical instruments --- Astrophysique --- Astronomie --- Observations --- Instruments --- Observations.

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This is the unique story of  observing a total solar exlipse for no less than 74 consecutive minutes. On the summer morning of June 30, 1973, the Sun rises on the Canary Islands. But it is strangely indented by the Moon. The eclipse of the century has just begun. From the west, the lunar shadow rushes to the African coast at a velocity of over 2000 kilometers per hour. Astronomers on the ground will enjoy seven short minutes of total eclipse to study the solar corona - too short for Pierre Lena and seven scientists who board the Concorde 001 prototype, an extraordinary plane to become the first commercial supersonic aircraft. With André Turcat as chief pilot and a crew of five, at 17000 m altitude, the aircraft remains in the lunar shadow for 74 minutes, a record time of scientific observations not yet beaten and allowing for exceptional measurements. Science, technology, aviation and history combine in the story of a unique human adventure aboard a legendary aircraft, illustrated with a rich and original iconography. It reflects the wonderful domains that science and technology can open, and the passion in the professions they offer. A must read for every eclipse chaser and fan of true scientific adventures.

Astronomy - General --- Astronomy & Astrophysics --- Physical Sciences & Mathematics --- Solar eclipses --- Astronomy --- Astronomical observatories. --- Aeronautics --- Research. --- History --- Aerostation --- Air navigation --- Aviation --- Astronomical research --- Eclipses, Solar --- Observatories --- Popular works. --- Observations, Astronomical. --- Astronomy. --- Aerospace engineering. --- Astronautics. --- Popular Science. --- Popular Science in Astronomy. --- Astronomy, Observations and Techniques. --- Aerospace Technology and Astronautics. --- Observations. --- Communication and traffic --- Aerodynamics --- Airships --- Astronautics --- Balloons --- Flight --- Flying-machines --- Eclipses --- Space sciences --- Astrodynamics --- Space flight --- Space vehicles --- Astronomy—Observations. --- Aeronautical engineering --- Engineering --- Astronomical observations --- Observations, Astronomical

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Rien ne vaut l’expérience de se rendre dans une classe, pour y voir et écouter des enfants, guidés par leur maître, faire de la science ! Pierre Léna est animé de la conviction qu’un jeune armé de davantage de capacités d’expression, de plus de confiance en soi, de plus d’esprit critique, aura un chemin moins difficile qui s’ouvrira devant lui. Ainsi, au fil de courts chapitres reflétant observations, expériences ou questions, il évoque la place de la science au sein de la culture, le parallèle entre bien des pays et la France, et tente à partir de ces constats de dessiner quelques traits possibles de cette école à venir. La prise de conscience des profondes évolutions, nécessaires pour passer de l’école d’hier à celle de demain, est désormais très présente en France, mais la construction d’un consensus autour de celles-ci, bien qu’indispensable, demeure difficile. La main à la pâte a montré que rien ne peut se faire sans les professeurs, ou contre eux, mais les accompagner avec constance, comme l’a fait l’Académie des sciences, a pu changer la donne. Bien des pistes pour l’avenir peuvent s’en déduire.

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Optics. --- Light. --- Optique --- Lumière. --- Optique.