The Exploration of SpaceTemple Press, 1951 - 198 pagini |
Din interiorul cărții
Rezultatele 1 - 3 din 35
Pagina 45
... velocity in a few feet under an enormous acceleration , the spaceship has thousands of miles in which to build up speed at a rate which human passengers could withstand . Still , this distance is as negligible compared with the total ...
... velocity in a few feet under an enormous acceleration , the spaceship has thousands of miles in which to build up speed at a rate which human passengers could withstand . Still , this distance is as negligible compared with the total ...
Pagina 77
... velocity ( 5,200 m.p.h. ) , which , it will be remembered , could be reached in four minutes under only one gravity . It would then travel back to Earth along an orbit similar to that which it traversed on the outward voyage , and ...
... velocity ( 5,200 m.p.h. ) , which , it will be remembered , could be reached in four minutes under only one gravity . It would then travel back to Earth along an orbit similar to that which it traversed on the outward voyage , and ...
Pagina 83
... velocity . To alter this , the rockets have to be used in the manner shown in Figure 14 . A ( a ) ( b ) Figure 14. Altering the Velocity of a Spaceship Suppose that the velocity of the ship is represented , in magnitude and direction ...
... velocity . To alter this , the rockets have to be used in the manner shown in Figure 14 . A ( a ) ( b ) Figure 14. Altering the Velocity of a Spaceship Suppose that the velocity of the ship is represented , in magnitude and direction ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
THE EARTH AND ITS NEIGHBOURS | 9 |
THE ROCKET | 17 |
Drept de autor | |
19 alte secțiuni nu sunt arătate
Alte ediții - Afișează-le pe toate
Termeni și expresii frecvente
able acceleration actual already appear astronautics astronomers atmosphere atomic become body build carry certainly Chapter close completely consider considerable course deal developed difficult direction discovered discuss distance Earth effect energy escape exist exploration extremely fact fall field Figure fuel give given gravity greater heat human hundred idea imagine important impossible increase interesting interplanetary involved journey known landing least less light limit live look lunar Mars material matter means miles minutes Moon motors necessary never observed once orbit oxygen perhaps period planets Plate possible practical present pressure probably problem produce purely radio reach reason relatively remain rocket round satellite scientific seems seen ship shown simple Solar space spaceship speed stars stations structure surface telescope temperature thousand Universe velocity Venus weight whole