The Exploration of Space |
Din interiorul cărții
Rezultatele 1 - 3 din 31
Pagina 40
Some of the radio equipment already used in V.2's can transmit the readings of as many as fifty separate instruments , and the frequency used is so high that the ionosphere cannot act as a barrier . Because of the limited heights so far ...
Some of the radio equipment already used in V.2's can transmit the readings of as many as fifty separate instruments , and the frequency used is so high that the ionosphere cannot act as a barrier . Because of the limited heights so far ...
Pagina 85
We have several times mentioned the use of radio and radar in space , and this is a subject of almost as much importance as the building of rocket motors themselves . It is true that without rockets space - travel would be impossible ...
We have several times mentioned the use of radio and radar in space , and this is a subject of almost as much importance as the building of rocket motors themselves . It is true that without rockets space - travel would be impossible ...
Pagina 153
Since 1945 , astronomers have become more and more interested in “ telescopes ” employing not light rays but radio waves , which have much greater penetrating power and so may be able to teach us something about the structure of parts ...
Since 1945 , astronomers have become more and more interested in “ telescopes ” employing not light rays but radio waves , which have much greater penetrating power and so may be able to teach us something about the structure of parts ...
Ce spun oamenii - Scrie o recenzie
Nu am găsit nicio recenzie în locurile obișnuite.
Cuprins
THE SHAPING OF THE DREAM | 1 |
THE EARTH AND ITS NEIGHBOURS | 9 |
THE ROCKET | 17 |
Drept de autor | |
17 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 moving 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 seems seen ship shown simple Solar space spaceship speed stars stations structure surface telescope temperature thousand Universe velocity Venus weight whole
Informații bibliografice
| Titlu | The Exploration of Space |
| Autor | Arthur Charles Clarke |
| Editor | Temple Press, 1951 |
| Exemplar original de la | Universitatea din Michigan |
| Scanată la | 14 Dec 2007 |
| Lungime | 198 pagini |
| Exportă citatul | BiBTeX EndNote RefMan |