Rocket to the Moon

Sprednja platnica
Van Nostrand, 1958 - 270 strani
Two scientists explain how man will probably reach the moon, and why the project is important. They present arguments for an accelerated program.
 

Druge izdaje - Prikaži vse

Pogosti izrazi in povedi

Priljubljeni odlomki

Stran 128 - Scientific research, of course, has never been amenable to rigorous cost accounting in advance. Nor, for that matter, has exploration of any sort. But if we have learned one lesson, it is that research and exploration have a remarkable way of paying off— quite apart from the fact that they demonstrate that man is alive and insatiably curious.
Stran 130 - Present weather stations on land and sea can keep only about 10 per cent of the atmosphere under surveillance. Two or three weather satellites could make a cloud inventory of the whole globe every few hours. From this inventory meteorologists believe they could spot large storms (including hurricanes) in their early stages and chart their direction of movement with much more accuracy than at present. Other instruments in the satellites will measure for the first time how much solar energy is falling...
Stran 128 - Here are some of the things that scientists say can be done with the new satellites and other space mechanisms. A satellite in orbit can do three things: (1) it can sample the strange new environment through which it moves; (2) it can look down and see the earth as it has never been seen before; and (3) it can look out into the universe and record information that can never reach the earth's surface because of the intervening atmosphere. The satellite's immediate environment at the edge of space...
Stran 170 - Remotely controlled scientific expeditions to the Moon and nearby planets could absorb the energies of scientists for many decades. Since man is such an adventurous creature, there will undoubtedly come a time when he can no longer resist going out and seeing for himself. It would be foolish to try to predict today just when this moment will arrive. It might not arrive in this century, or it might come within one or two decades. So much will depend on how rapidly we want to expand and accelerate...
Stran 170 - ... but rockets to take off again from the moon. Equipment will also be required aboard to get the payload through the atmosphere and safely back to earth. To land a man on the moon and get him home safely again will require a very big rocket engine indeed— one with a thrust in the neighborhood of one or two million pounds.
Stran 129 - What is the effect of weightlessness on physiological and psychological functions? (Gravity is not felt inside a satellite because the earth's pull is precisely balanced by centrifugal force. This is just another way of saying that bodies inside a satellite behave exactly as they would inside a freely falling elevator...
Stran 29 - I planted myself in the middle of a great many glasses full of dew, tied fast about me; upon which the sun so violently darted his rays, that the heat, which attracted them, as it does the thickest clouds, carried me up so high, that at length I found myself above the middle region of the air.
Stran 171 - Space Timetable Thus we see that satellites and space vehicles can carry out a great variety of scientific missions, and a number of military ones as well. Indeed, the scientific opportunities are so numerous and so inviting that scientists from many countries will certainly want to participate. Perhaps the International Geophysical Year will suggest a model for the international exploration of space in the years and decades to come. The...
Stran 27 - And here it is considerable, that since our bodies will then be devoid of gravity, and other impediments of motion, we shall not at all spend ourselves in any labour, and so consequently not much need the reparation of diet ; but may, perhaps, live altogether without it, as those creatures have done, who by reason of their sleeping for many days together, have not spent any spirits, and so not wanted any food, which is commonly related of serpents, crocodiles, bears, cuckoos, swallows, and such like....
Stran 131 - ... the moon. If we are to test this intriguing hypothesis we must be careful not to contaminate the moon's surface, in the biological sense, beforehand. There are strong scientific reasons, too, for avoiding radioactive contamination of the moon until its naturally acquired radioactivity can be measured. . . . and on to Mars The nearest planets to Earth are Mars and Venus. We know quite enough about Mars to suspect that it may support some form of life. To land instrument carriers on Mars and Venus...

Bibliografski podatki