The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 47
... reasons for believing that , in time , we will be able to harness atomic energy for rocket propulsion . This would ... reason why there should not be . “ Orbital refuelling " , as it has been christened , is the key to interplanetary ...
... reasons for believing that , in time , we will be able to harness atomic energy for rocket propulsion . This would ... reason why there should not be . “ Orbital refuelling " , as it has been christened , is the key to interplanetary ...
Pagina 110
... reason this is often called the " dark side " , but of course it would receive just as much sunlight as the rest of the Moon - nor is there the slightest reason to suppose that it will be very different in any other way . When they ...
... reason this is often called the " dark side " , but of course it would receive just as much sunlight as the rest of the Moon - nor is there the slightest reason to suppose that it will be very different in any other way . When they ...
Pagina 166
... reason why such multiple stars should not have planets , and indeed there are cogent arguments why they should . We do not know how double suns are formed , but whatever the process Plate XIII LESLIE CARR A MULTIPLE SUN SYSTEM Painting ...
... reason why such multiple stars should not have planets , and indeed there are cogent arguments why they should . We do not know how double suns are formed , but whatever the process Plate XIII LESLIE CARR A MULTIPLE SUN SYSTEM Painting ...
Cuprins
FRONTISPIECE Automatic Rocket Surveying Mars PLATE I HighAltitude ManCarrying Rocket | 3 |
Spaceships Refuelling In Free Orbit | 4 |
The Earth and its Neighbours | 9 |
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Termeni și expresii frecvente
acceleration already asteroids astronautics astronomers atmosphere body bricks build carry certainly Chapter chemical climb 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 involved ionosphere journey Jupiter landing light light-years lunar Mars and Venus Martian means Mercury meteors million minutes missile Moon Moon's motors never observed oxygen payload perhaps planetary planets Pluto possible pounds pressure pressurised probably problem produce propellant Propontis propulsion Proxima Centauri R. A. Smith radar radiation radio reach reason 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