He suggested controlling a rocket'a flight outside the atmosphere by moans of rudders impinging in the exauat, or by tilting the exauat nozzel. He proposed fuel including gasoline. kerosene, alcohol and mataana, worked out methods for controlling the flo" of propellants to the combustion chamber by mixer valves, and advocated coolling the combustion chamber and noze-Ie by passing one of the liquids through a double-walled jacket. PenaiTe KpocoBopa. I. ropOa,B JtOTOpOH HaXCWICfl OaMHTHHX K. 3. Ulia)IKOBCiC01(y. 2. BKX ToiuiHBa, KOTopidI peKOMeaaoaajB npBUQBJm UacuixoBcaafl. 3. KoNnoHeBT lOMBBa. o&sawvawi BHcoKOfi aueprHefl. 4. IIpeAaoxeEBHfl IIBOBKOBCXU i Be BcnoJihsofiaHHHfl RomoHeBT ToniBBa. 5. CacTeua KOHTPOJM aa n, suaylWti push - TOJireoK atop firing-npeKpaTHTi> pafioty acceleration - yCKOpeMe ASTROHAUTS INTO SPACE Astronauts have made observations that machines could never have made. A Ban or woman obviously needs greater care than a piece of electronic equipment. A Banned spacecraft has to provide its occupants with air to breathe, food and water, just the right amount of heat, and so on. It is therefore a very complicated machine indeed. The spacecraft is split up into several modules, or units that are used for different purpses. One module may only be used for launch and landing, another for working, and another may contain equipment and engines. When it is no longer needed a module may be 'Jettisoned'' or left behind in space. The spacecraft is launched into space on top of a huge rocket. Aa it speeds away from Earth and gets faster and faster strong forces caused by the acceleration push the astronauts down into their seats. When the engines stop firing, the spacecraft ia in orbit around the Earth or on its way into space. The Space Shuttle's life-support system automatically supplies air and water. \ An atmosphere like the earth's is maintained in the crew compartment. Atmospheric pressure is the same as standard sca- 17