I / The Raisons D'être of Space Astronomy.- I The structure of the Atmospheric Layers.- II The Opaque Wall of the Atmosphere.- III Atmospheric Diffusion: Extinction and the Blue of the Sky.- IV The Inhomogeneity of the Earth's Atmosphere: Clouds and Refraction.- V The Particle Barrier.- VI The Fusion of Meteorites.- II / A Provisional and Partial Inventory of Some of the Information to be Acquired by Space Research.- I Beyond Diffusion.- II Beyond Turbulence.- III Beyond Ultraviolet Opacity.- IV Astronomy at Short Wavelengths.- V Beyond Infrared Opacity: Towards the Infrared by Balloon.- VI Beyond the Ionosphere: Towards Very Long Wavelengths by Eccentric Satellite.- VII A Prospective Conclusion of Limited Perspective.- Conclusion.- I. Universal Physical Constants.- II. The Sun.- III. The Solar System.
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Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Le ciel est, par-dessus le toit, The sky is, up above the roof, Si bleu, si calme! So blue, so calm! Un arbre, par-dessus Je toit, A tree there, up above the roof, Berce sa palme. Waves leaves of palm. La cloche, dans le ciel qu'on voit, A church bell, in the sky I see, Doucement tinte. Softly tolls. Un oiseau, sur l'arbre qu'on voit, A bird, upon the tree I see, Chante sa plainte. Sadly calls. PAUL VERLAINE Like Verlaine, we are in prison. The prison is our Earth, 'which is so pretty'; our atmosphere and its clouds, its 'marvellous clouds'. (You would think that Verlaine, Prevert and Baudelaire had been comparing notes!) The sky is up above the roof. A tree there, up above the roof. Stars in the sky, like birds . their rays, like bells (and here we are with Apollinaire!) What we see opens the way to what we guess at; what we observe Ieads us towards the unobservable. A poem releases images, and the invisible grows big with reality. Astronomcrs are a little like poets (indirectly from the Greek 7tostco, make): they make the universe by interpreting messages, extrapolating spectra, and inventing 'models' of the cosmos or of stars - fictional constructions whose observable part constitutes only a small fraction of the whole, and which only the inductive logic of the theoretician allows us to consider as representing unique physical reality. Artikel-Nr. 9789401033220
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Taschenbuch. Zustand: Neu. Space Observatories | Jean-Claude Pecker | Taschenbuch | Astrophysics and Space Science Library | xi | Englisch | 2013 | Springer | EAN 9789401033220 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu. Artikel-Nr. 105565649
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