The Exploration of SpaceHarper, 1959 - 200 pagini |
Din interiorul cărții
Rezultatele 1 - 3 din 21
Pagina 164
... Universe through the screen of stars which hid them from the rest of space . As will be seen , stars vary greatly among themselves in physical structure , as well as in size and brilliance . Some of the giants are so rarefied that they ...
... Universe through the screen of stars which hid them from the rest of space . As will be seen , stars vary greatly among themselves in physical structure , as well as in size and brilliance . Some of the giants are so rarefied that they ...
Pagina 176
... Universe , why have they never come to Earth ? One answer to this is given by Plate XIV , the star clouds in Cygnus . The tightly packed star - fields shown there cover only a small portion of the Milky Way , and each of those stars is ...
... Universe , why have they never come to Earth ? One answer to this is given by Plate XIV , the star clouds in Cygnus . The tightly packed star - fields shown there cover only a small portion of the Milky Way , and each of those stars is ...
Pagina 188
... Universe . On the contrary , it may indeed increase it . Although many specific problems will be solved , and many doubts settled , our area of contact with the unknown will be enormously magni- fied . This has always been the case with ...
... Universe . On the contrary , it may indeed increase it . Although many specific problems will be solved , and many doubts settled , our area of contact with the unknown will be enormously magni- fied . This has always been the case with ...
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