The Exploration of SpacePocket Books, 1979 - 237 pagini Presents a nonscientific explanation of space exploration and a view of future life on other planets. |
Din interiorul cărții
Rezultatele 1 - 3 din 37
Pagina 155
... Venus in this respect . It is quicker to reach Venus , but takes rather more power at least if a landing is to be made . The case of Venus , sometimes called Earth's sister planet , is a tantalizing one . As at her closest she is only ...
... Venus in this respect . It is quicker to reach Venus , but takes rather more power at least if a landing is to be made . The case of Venus , sometimes called Earth's sister planet , is a tantalizing one . As at her closest she is only ...
Pagina 156
... Venus being carbon dioxide . This is present in enormous quantities : there is probably more than a thousand times as much of it above the clouds of Venus as in the whole of our atmosphere . What lies below the clouds we can only guess ...
... Venus being carbon dioxide . This is present in enormous quantities : there is probably more than a thousand times as much of it above the clouds of Venus as in the whole of our atmosphere . What lies below the clouds we can only guess ...
Pagina 158
... Venus is a wind - swept desert with no outstanding geographical markings , it will be possible to obtain an accurate contour map by radar . Venus has no satellite , a deprivation shared only by Mercury and possibly Pluto . If there are ...
... Venus is a wind - swept desert with no outstanding geographical markings , it will be possible to obtain an accurate contour map by radar . Venus has no satellite , a deprivation shared only by Mercury and possibly Pluto . If there are ...
Cuprins
Preface to the 1951 Edition | 11 |
Thirty Years Later | 15 |
The Shaping of the Dream | 21 |
Drept de autor | |
18 alte secțiuni nu sunt arătate
Alte ediții - Afișează-le pe toate
Termeni și expresii frecvente
acceleration airless already astronautics astronomers atmo atmosphere body bricks build carry certainly Chapter chemical completely conquest of space consider course crew degrees F difficult direction distance Earth energy enormous escape velocity exist exploration extremely fact Figure fuel Galaxy giant gravitational field gravity heat Hermann Oberth hundred miles idea imagine important interplanetary flight interplanetary travel interstellar ionosphere Jerry Pournelle journey Jupiter landing large number light light-years lunar Mars and Venus Martian means Mercury meteors miles in diameter million minutes missile Moon Moon's motors never normal observed once oxygen payload perhaps planetary planets Pluto possible pounds pressure probably problem produce propellant propulsion Proxima Centauri radar radio reach reason refueling rocket power satellite Saturn scientific ship Solar System space space-flight space-station space-suits space-travel spaceship speed spin stars stations surface take-off telescope temperature thousand thrust tion trolley voyage weight weightless