The Exploration of SpaceTemple Press, 1951 - 198 pagini |
Din interiorul cărții
Rezultatele 1 - 3 din 22
Pagina 68
... extremely cold outside the atmosphere . In fact , the reverse is nearer the truth . Consider the case of a solid body floating in space at the Earth's distance from the Sun. One side will be in shadow , the other in full sunlight . This ...
... extremely cold outside the atmosphere . In fact , the reverse is nearer the truth . Consider the case of a solid body floating in space at the Earth's distance from the Sun. One side will be in shadow , the other in full sunlight . This ...
Pagina 109
... extremely hot until the moment of sunset . ) During the long night the temperature drops to about 250 degrees below zero Fahrenheit , a total " daily " range of more than 400 degrees ! For comparison , the highest and lowest ...
... extremely hot until the moment of sunset . ) During the long night the temperature drops to about 250 degrees below zero Fahrenheit , a total " daily " range of more than 400 degrees ! For comparison , the highest and lowest ...
Pagina 139
... extremely difficult and to some extent a matter of luck . That the Sun can control the movement of bodies far out into interstellar space is proved by the existence of comets . Some of these strange entities travel on extremely ...
... extremely difficult and to some extent a matter of luck . That the Sun can control the movement of bodies far out into interstellar space is proved by the existence of comets . Some of these strange entities travel on extremely ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
Automatic Rocket Surveying Mars | 4 |
THE EARTH AND ITS NEIGHBOURS | 9 |
Drept de autor | |
22 alte secțiuni nu sunt arătate
Alte ediții - Afișează-le pe toate
Termeni și expresii frecvente
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