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 38
Pagina 111
... less than three , and would often be five , bright planets available for ob- servation this is clearly a very useful method , as well as an extremely simple one . An alternative though less accurate method of posi- tion - finding would ...
... less than three , and would often be five , bright planets available for ob- servation this is clearly a very useful method , as well as an extremely simple one . An alternative though less accurate method of posi- tion - finding would ...
Pagina 162
... less important than the undoubted fact that the Martian atmosphere is very tenuous and contains no oxygen . The oxygen has prob- ably not been lost : it is still there , locked up in the deserts which cover so much of the planet ...
... less important than the undoubted fact that the Martian atmosphere is very tenuous and contains no oxygen . The oxygen has prob- ably not been lost : it is still there , locked up in the deserts which cover so much of the planet ...
Pagina 171
... less than a day . The cloud belts and occa- sional great atmospheric disturbances could be observed in minute detail and , as Mimas cannot have much weather of its own , would provide any inhabitants with an alternative and ...
... less than a day . The cloud belts and occa- sional great atmospheric disturbances could be observed in minute detail and , as Mimas cannot have much weather of its own , would provide any inhabitants with an alternative and ...
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