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 15
Pagina 101
... acceleration of one gravity . After just over five minutes , it would have built up speed from 18,000 m.p.h. to the 24,900 m.p.h. needed to get it to the Moon . During the closing stages the motors would probably be throttled back to ...
... acceleration of one gravity . After just over five minutes , it would have built up speed from 18,000 m.p.h. to the 24,900 m.p.h. needed to get it to the Moon . During the closing stages the motors would probably be throttled back to ...
Pagina 127
... acceleration need be little more than one gravity and the crew would feel no discomfort whatsoever . Three gravities acceleration in the vertical direction means that the occupants of the spaceship would feel four times their normal ...
... acceleration need be little more than one gravity and the crew would feel no discomfort whatsoever . Three gravities acceleration in the vertical direction means that the occupants of the spaceship would feel four times their normal ...
Pagina 215
... accelerating more rapidly than a shell while it was being fired from a gun , but there would be no feeling of strain ... acceleration . It would not , however , help us to cir- cumvent the restrictions set by the Theory of Rela- tivity ...
... accelerating more rapidly than a shell while it was being fired from a gun , but there would be no feeling of strain ... acceleration . It would not , however , help us to cir- cumvent the restrictions set by the Theory of Rela- tivity ...
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