The Exploration of Space |
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Pagina 22
Consequently not only does the trolley's velocity increase during the experiment — its acceleration does as well . The analogy with the rocket should now be clear , the main difference between the two cases being that a rocket ejects ...
Consequently not only does the trolley's velocity increase during the experiment — its acceleration does as well . The analogy with the rocket should now be clear , the main difference between the two cases being that a rocket ejects ...
Pagina 51
It is therefore nonsense to speak , as many writers have done , of a steadily increasing sense of weight as one fell towards another planet . There would be an increasing gravitational force and an increasing acceleration , but the ...
It is therefore nonsense to speak , as many writers have done , of a steadily increasing sense of weight as one fell towards another planet . There would be an increasing gravitational force and an increasing acceleration , but the ...
Pagina 171
The mass of a body increases with its speed . The effect is immeasurably small at ordinary velocities ... In addition to the increase of mass , there is also what might be called a " stretching ” of time . If one could compare a minute ...
The mass of a body increases with its speed . The effect is immeasurably small at ordinary velocities ... In addition to the increase of mass , there is also what might be called a " stretching ” of time . If one could compare a minute ...
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Cuprins
The Shaping of the Dream | 1 |
The Earth and Its Neighbors | 9 |
The Rocket | 17 |
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able acceleration actual already appear astronautics astronomers atmosphere atomic become body build carry certainly Chapter close completely consider considerable course deal developed difficult direction discuss distance Earth effect energy exist exploration extremely fact fall field Figure fuel give gravity greater heat hundred idea imagine important impossible increase interesting interplanetary involved journey known landing least less light limit live look lunar Mars material matter means miles million minutes Moon necessary never observed once operation orbit oxygen perhaps period planets Plate possible practical present pressure probably problem produce purely radio reach reason remain rocket round satellite seems seen ship shown simple Solar space spaceship speed stars stations structure suggested surface telescope temperature thousand Universe vehicle velocity Venus weight whole