The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 40
... direction must clearly have some limit : once that limit has been agreed , a country would appear to have no redress if an inquisitive neighbour started making rocket reconnaissances as long as they were at a legal height ! We will ...
... direction must clearly have some limit : once that limit has been agreed , a country would appear to have no redress if an inquisitive neighbour started making rocket reconnaissances as long as they were at a legal height ! We will ...
Pagina 73
... direction of motion - which is itself a quite arbitrary quantity , depending entirely on the viewpoint of the ... direction could have its rotation stopped by a rocket fired against the direction of spin . This method would be ( 1 ) ( 11 ) ...
... direction of motion - which is itself a quite arbitrary quantity , depending entirely on the viewpoint of the ... direction could have its rotation stopped by a rocket fired against the direction of spin . This method would be ( 1 ) ( 11 ) ...
Pagina 83
... direction , or both , to correct for this . We have already pointed out , on page 73 , that the actual orientation or attitude of a spaceship has nothing to do with its direction of motion : it could be spinning or pointing in space in ...
... direction , or both , to correct for this . We have already pointed out , on page 73 , that the actual orientation or attitude of a spaceship has nothing to do with its direction of motion : it could be spinning or pointing in space in ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
THE EARTH AND ITS NEIGHBOURS | 9 |
THE ROCKET | 17 |
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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