The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 40
... already obtained radio echoes from the Moon - a feat hundreds of times more difficult than sending a one - way signal over the same distance ! ) During the next decade it would certainly be possible to build an orbiting rocket carrying ...
... already obtained radio echoes from the Moon - a feat hundreds of times more difficult than sending a one - way signal over the same distance ! ) During the next decade it would certainly be possible to build an orbiting rocket carrying ...
Pagina 147
... already been solved . Anyone who has ever watched the mechanical hands and arms at work behind the lead barriers in a laboratory dealing with radioactive isotopes will agree that the remotely controlled robot is already almost with us ...
... already been solved . Anyone who has ever watched the mechanical hands and arms at work behind the lead barriers in a laboratory dealing with radioactive isotopes will agree that the remotely controlled robot is already almost with us ...
Pagina 152
... already obvious . The most important may be listed as follows : ( 1 ) astronomical and physical research ; ( 2 ) meteorology and surveying ; ( 3 ) biological studies ; ( 4 ) refuel- ling ; ( 5 ) radio relaying ; and ( 6 ) dock ...
... already obvious . The most important may be listed as follows : ( 1 ) astronomical and physical research ; ( 2 ) meteorology and surveying ; ( 3 ) biological studies ; ( 4 ) refuel- ling ; ( 5 ) radio relaying ; and ( 6 ) dock ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
Automatic Rocket Surveying Mars | 4 |
THE EARTH AND ITS NEIGHBOURS | 9 |
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acceleration already 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 free orbit fuel Galaxy gravitational field gravity heat Hermann Oberth hundred miles idea 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 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