The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 11
... SATURN 0 SUN- JUPITER SATURN URANUS 200 400 600 800 1,000 MILLIONS OF MILES SUN MERCURY VENUS EARTH MARS 0 20 40 60 80 100 MILLIONS OF MILES о о O PLUTO URANUS NEPTUNE 20 40 60 80 THOUSANDS OF MILES Figure 1. The Solar System Three ...
... SATURN 0 SUN- JUPITER SATURN URANUS 200 400 600 800 1,000 MILLIONS OF MILES SUN MERCURY VENUS EARTH MARS 0 20 40 60 80 100 MILLIONS OF MILES о о O PLUTO URANUS NEPTUNE 20 40 60 80 THOUSANDS OF MILES Figure 1. The Solar System Three ...
Pagina 121
... Saturn show changes such as occasional vast disturbances - which could hardly happen if they were solid bodies . In addition to the planets , the Solar System contains some thousands of asteroids or minor planets , whose diameters range ...
... Saturn show changes such as occasional vast disturbances - which could hardly happen if they were solid bodies . In addition to the planets , the Solar System contains some thousands of asteroids or minor planets , whose diameters range ...
Pagina 137
... Saturn's rings are , indeed , the nearest thing to a geometrically perfect plane that Nature has ever produced . When seen edge on , as happens at intervals of about fifteen years , the rings vanish completely . From its inner moons , ...
... Saturn's rings are , indeed , the nearest thing to a geometrically perfect plane that Nature has ever produced . When seen edge on , as happens at intervals of about fifteen years , the rings vanish completely . From its inner moons , ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
FRONTISPIECE Automatic Rocket Surveying Mars PLATE I HighAltitude ManCarrying Rocket | 4 |
Spaceships Refuelling In Free Orbit | 4 |
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acceleration already asteroids astronautics astronomers atmosphere atomic rockets body bricks British Astronomical Association build carry certainly Chapter chemical completely course crew degrees F difficult direction distance Earth energy enormous escape velocity exploration extremely fact Figure flywheel free orbit fuel Galaxy giant gravitational field gravity heat Hermann Oberth hundred miles imagine important interplanetary flight interplanetary travel interstellar ionosphere journey Jupiter landing light light-years lunar Mars and Venus Martian means Mercury meteors minutes missile Moon Moon's motors never observed oxygen payload perhaps planetary planets Pluto possible pounds pressure pressurised probably problem produce propellant propulsion Proxima Centauri R. A. Smith radar radiation radio reach refuelling return to Earth rocket power satellite Saturn scientific ship Solar System space space-flight space-station space-suits space-travel spaceship speed spinning stars stations surface take-off telescope temperature terrestrial thousand thrust trolley Uranus voyage weight