TEXT 16 B

Date: 2015-10-07; view: 343.

TEXT 16 A

Remain, an axiom, astronautics,

a self-taught man,

childhood, did not prevent him from acquiring knowledge. With endless patience, libraries and lecture rooms, mechanics and geometry, interplanetary travel, come across the law of action and reaction and the law of persistence of the centre of gravity, realized, constituted the solution of cosmic flight problems, appear, multi-stage rocket, tremendous step forward, man first rose into the air, laid, subsequent, proved, to leave the earth penetrating into boundless spaces and outlined his design of the first jet-driven flying machine, man-made satellite, neither forerunners nor experience, had no model to follow, nevertheless succeeded, calculate, Realization efforts of many people, shape, manned space ships.

1. jet-driven flying machine – реактивний літак;

2. liquid-cooled rocket combustion chamber – камера згорання з рідинним охолодженням;

3. to bring to completion – закінчити.

Reduction, to miniature proportions, a major trend, significance, especially, in connection, apparatus, calculating flight trajectories, life-support systems, Bulky , unsuitable, domestic use, printed circuits, considerably, replaced, consume less power, are reliable and more durable, micromodules — tiny ceramic plates with a metallized coating, compressed, assembled, Molecular electronics, The crystalline lattice can be changed by tantalum or titanium, separate, ordinary-size parts, radio sets, as generators or amplifiers, All this might sound fantastic, further ahead, approximately , one cubic centimetre. The density is approximately that of the human brain. Cybernetics machines assembled of these units will memorize tremendous volumes of information and will give man invaluable assistance in diverse fields of life.

TEXT 16 C

An electrically powered spacecraft, a round trip, definite advantages, an eight-man crew, respectively, boosters to lift the material, Electric power propulsion, a nuclear-fission turbo-electric system, discuss, the radiator equipment, Vapour exhausted from the turbine must be cooled and condensed before it returns to heat exchanger and the cycle is repeated, accomplished, efficient heat exchange, Thrust, conduct, a high degree of reliability, attain, Lighter , to fulfil the promise they offer for interplanetary travel.