The Exploration of SpaceTemple Press, 1951 - 198 pagini |
Din interiorul cărții
Rezultatele 1 - 3 din 39
Pagina 44
... thousand miles or so of the voyage — than in the jour- ney from orbit to orbit , which may cover a distance ten thousand times as great . Once again it should be emphasised that , to travel from one planet to another , rocket power need ...
... thousand miles or so of the voyage — than in the jour- ney from orbit to orbit , which may cover a distance ten thousand times as great . Once again it should be emphasised that , to travel from one planet to another , rocket power need ...
Pagina 82
... thousand a second . Then if the ship were travelling towards Earth , it would receive more than a thousand pips a second : if away from it , less . Modern electronic equipment can make such measurements with great accuracy and one day ...
... thousand a second . Then if the ship were travelling towards Earth , it would receive more than a thousand pips a second : if away from it , less . Modern electronic equipment can make such measurements with great accuracy and one day ...
Pagina 135
... thousands of them exist , they cannot constitute a " menace to navigation " , as has some- times been suggested . The gulf between Mars and Jupiter is too enormous for a few thousand , or even a few million , asteroids to go very far ...
... thousands of them exist , they cannot constitute a " menace to navigation " , as has some- times been suggested . The gulf between Mars and Jupiter is too enormous for a few thousand , or even a few million , asteroids to go very far ...
Cuprins
FRONTISPIECE Automatic Rocket Surveying Mars PLATE I HighAltitude ManCarrying Rocket | 3 |
Spaceships Refuelling In Free Orbit | 4 |
The Earth and its Neighbours | 9 |
Drept de autor | |
28 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 climb completely course crew degrees F difficult direction distance Earth energy enormous escape velocity exploration extremely fact Figure flywheel free orbit fuel Galaxy giant gravitational field gravity heat Hermann Oberth hundred miles imagine important interplanetary flight interplanetary travel interstellar involved ionosphere journey Jupiter landing light light-years lunar 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 Propontis 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