The Exploration of SpaceHarper, 1959 - 200 pagini |
Din interiorul cărții
Rezultatele 1 - 3 din 16
Pagina 49
... actual points of impact depending on the height of release and the velocities at separation . In extreme cases , the last step but one might go almost round the world before returning to Earth . This implies that the spaceship would ...
... actual points of impact depending on the height of release and the velocities at separation . In extreme cases , the last step but one might go almost round the world before returning to Earth . This implies that the spaceship would ...
Pagina 52
... actual speeds of the aircraft being of no importance as long as they are equal . In the case of orbital refueling , the problem of contact should be con- siderably easier . There is no air resistance to worry about and to affect the ...
... actual speeds of the aircraft being of no importance as long as they are equal . In the case of orbital refueling , the problem of contact should be con- siderably easier . There is no air resistance to worry about and to affect the ...
Pagina 80
... actual calculation of the orbit would , however , be a complicated task and might require the use of electronic computers altogether too large to be carried in a spaceship . Possibly this duty would be relegated to machines on the Earth ...
... actual calculation of the orbit would , however , be a complicated task and might require the use of electronic computers altogether too large to be carried in a spaceship . Possibly this duty would be relegated to machines on the Earth ...
Cuprins
The Shaping of the Dream | 1 |
Navigation and Communication in Space | 78 |
1 | 118 |
Drept de autor | |
1 alte secțiuni nu sunt arătate
Alte ediții - Afișează-le pe toate
Termeni și expresii frecvente
acceleration airless asteroids astronautics astronomers atmosphere body bricks build carry certainly Chapter chemical completely course crew diameter difficult distance Earth energy engineering enormous escape velocity exploration extremely fact Figure free orbit fuel Galaxy gases gravitational field gravity heat hundred hydrogen imagine important interplanetary flight interplanetary travel interstellar ionosphere journey Jupiter landing LEWIS CARROLL light light-years lunar Mars and Venus Martian means Mercury meteors miles million minutes missiles Moon Moon's motors never normal observed orbit oxygen payload perhaps planetary Plate Pluto possible pounds pressure probably problem produce propellant propulsion Proxima Centauri R. A. Smith radar radiation radio reach reason refueling rocket power satellite Saturn scientific ship Solar System space space-flight space-stations space-suits space-travel spaceship speed spinning stars stations structure sunlight surface take-off tanks telescope temperature thousand thrust trolley Uranus vehicle voyage weight weightless