The Exploration of SpaceTemple Press, 1951 - 198 pagini |
Din interiorul cărții
Rezultatele 1 - 3 din 31
Pagina 12
... Chapter 4. Mercury is moving in its orbit at 107,000 m.p.h. , the Earth at a more modest 68,000 and Pluto at a mere 10,000 m.p.h. The second important point is that almost all the planets lie in or very near the same plane , so that the ...
... Chapter 4. Mercury is moving in its orbit at 107,000 m.p.h. , the Earth at a more modest 68,000 and Pluto at a mere 10,000 m.p.h. The second important point is that almost all the planets lie in or very near the same plane , so that the ...
Pagina 51
... Chapter 15 , the minimum height might be five hundred or even a thousand miles . ) The lower steps of the rocket , discarded during its climb out of the atmosphere , would fall back to earth along a line extending eastwards from the ...
... Chapter 15 , the minimum height might be five hundred or even a thousand miles . ) The lower steps of the rocket , discarded during its climb out of the atmosphere , would fall back to earth along a line extending eastwards from the ...
Pagina 142
... Chapter 18. In what follows now we will assume , perhaps optimistically , that one day the human race will be prepared to devote to astronautics the effort and money needed to wage a minor war . The exploration and colonisation of the ...
... Chapter 18. In what follows now we will assume , perhaps optimistically , that one day the human race will be prepared to devote to astronautics the effort and money needed to wage a minor war . The exploration and colonisation of the ...
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