The Exploration of SpaceHarper, 1951 - 199 pagini |
Din interiorul cărții
Rezultatele 1 - 3 din 36
Pagina 64
... least on the side towards the crew . The studies that have been made of the subject indicate that , if the spaceship was a long , narrow structure with the motor at one end and the crew at the other , the weight of shielding would not ...
... least on the side towards the crew . The studies that have been made of the subject indicate that , if the spaceship was a long , narrow structure with the motor at one end and the crew at the other , the weight of shielding would not ...
Pagina 90
... least as intense as in free space . Two men ( Stevens and Anderson , in the stratosphere balloon Explorer II , 1935 ) went through the region of maximum intensity and spent several hours above it without ill effects . And it is worth ...
... least as intense as in free space . Two men ( Stevens and Anderson , in the stratosphere balloon Explorer II , 1935 ) went through the region of maximum intensity and spent several hours above it without ill effects . And it is worth ...
Pagina 134
... least one goes nearer the Sun than Mercury . But the majority stay in the zone between Mars and Jupiter . The total number of asteroids , of all sizes , must run into at least five figures . Until recently , astronomers were unable to ...
... least one goes nearer the Sun than Mercury . But the majority stay in the zone between Mars and Jupiter . The total number of asteroids , of all sizes , must run into at least five figures . Until recently , astronomers were unable to ...
Cuprins
The Shaping of the Dream | 1 |
The Earth and Its Neighbours | 7 |
The Rocket | 17 |
Drept de autor | |
16 alte secțiuni nu sunt arătate
Alte ediții - Afișează-le pe toate
Termeni și expresii frecvente
acceleration already asteroids astronautics astronomers atmosphere body bricks 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 giant gravitational field gravity heat Hermann Oberth hundred miles idea imagine important interplanetary flight interplanetary travel interstellar ionosphere journey Jupiter landing light light-years lunar Mare Imbrium 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 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 tion trolley Uranus voyage weight