The Exploration of SpacePocket Books, 1979 - 237 pagini Presents a nonscientific explanation of space exploration and a view of future life on other planets. |
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Pagina 60
... build up escape velocity as quickly as pos- sible — and then to cut the rockets and " coast . " A commonplace but accurate analogy is given by the cyclist who builds up enough speed on the level to take him over a hill . To surmount our ...
... build up escape velocity as quickly as pos- sible — and then to cut the rockets and " coast . " A commonplace but accurate analogy is given by the cyclist who builds up enough speed on the level to take him over a hill . To surmount our ...
Pagina 189
... build instruments which could measure the diameters of normal - sized stars . It might even become possible to detect planets of the nearer stars , something quite out of the question with earth - based equipment . Since 1945 ...
... build instruments which could measure the diameters of normal - sized stars . It might even become possible to detect planets of the nearer stars , something quite out of the question with earth - based equipment . Since 1945 ...
Pagina 227
... build spaceships any more than aero- nautical societies , as such , build aircraft . They will be the specialist organizations — the professional bodies— of the scientists and engineers doing work in this field . When the time comes to ...
... build spaceships any more than aero- nautical societies , as such , build aircraft . They will be the specialist organizations — the professional bodies— of the scientists and engineers doing work in this field . When the time comes to ...
Cuprins
Preface to the 1951 Edition | 11 |
Thirty Years Later | 15 |
The Shaping of the Dream | 21 |
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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