The Exploration of SpaceHarper, 1959 - 200 pagini |
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Pagina 85
... already are ; the great radio telescope at Jodrell Bank , near Manchester , has a collecting area of over 5,000 square yards . By the use of such installations , there would be no great difficulty in sending speech as far as Mars and ...
... already are ; the great radio telescope at Jodrell Bank , near Manchester , has a collecting area of over 5,000 square yards . By the use of such installations , there would be no great difficulty in sending speech as far as Mars and ...
Pagina 140
... already have enough to deal with . Yet if our survey of the subject is to have claim to thoroughness , we cannot overlook these difficulties . The speed with which the planets are explored and all their possibilities developed depends ...
... already have enough to deal with . Yet if our survey of the subject is to have claim to thoroughness , we cannot overlook these difficulties . The speed with which the planets are explored and all their possibilities developed depends ...
Pagina 145
... 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 with us . When ...
... 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 with us . When ...
Cuprins
The Shaping of the Dream | 1 |
Navigation and Communication in Space | 78 |
1 | 118 |
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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