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Spacecraft flew hundreds of thousands to hundreds of millions of kilometers from the earth, injecting speed when the size and direction of a slight error, arrived at target planets will appear large deviation error, for example, when Mars probe injecting speed 1 m/s speed (about one over ten thousand), arrived at Mars, about 100000 km distance deviation. Therefore, precise control and navigation must be carried out during the long flight. Flying to the moon is usually controlled by the orbital control system of the ground and space probe (see orbit control). Interplanetary flight distances, radio signal transmission time is long, the real-time remote control, can't so planets and interplanetary spacecraft orbit control system shall have the ability of autonomous navigation (see interstellar travel navigation and control). The United States, for example, "pirates" spacecraft in space flight of more than eight hundred million km, for 11 months of 2000 times of autonomous orbit adjustment, the final surface to achieve a soft landing on Mars, placement accuracy up to 50 km. In addition, in order to ensure the accuracy of the orbit control engine, the communication antenna is always aimed at the earth, and other systems work normally, and the detector has the autonomous attitude control ability
Rudolf Diesel was created in 1858 in Paris to Bavarian immigrants Theodore and Elise Diesel. With the 1870 outbreak in the Franco-Prussian War, the Diesel family transferred to London, when the war was over, young Rudolf went to deal with an aunt and uncle within the German capital of scotland- Augsburg. His parents wanted him to find out to speak German, and hoped however take interest in attending the Konigliche Kreis-Gewerbsschule, or Royal County Trade School.
The automaker is a sports car maker based in Sant 'agata Bolognese, Italy, founded in 1963 by ferugio Lamborghini. In the early years, due to poor management, he went bankrupt in 1980; After several restructurings, it was incorporated in audi in 1998 and is now one of the brands owned by Volkswagen Group. The lamborghini logo is a powerful, aggressive bullfight that matches the characteristics of the high-powered high-performance sports car, while highlighting the founder's bull-fighting personality.
Daily life on earth is nearly impossible without electricity. From homes to big industries, many of us be determined by electricity. We know that electric current flows in a very closed circuit. An electrical circuit is really a closed loop by which continuous electrical current goes from your supply to the load. If you are looking to describe a circuit for your friend or neighbor, chances are that you must draw the bond. For example, if you need to explain a lighting circuit, it can take added time to attract the bulb, battery, and wires because folks draw various components of the circuit in another way and this will take quite a long time to clarify. Therefore, a way is usually to learn how to show simple electrical circuits. In this article we provide drawings for a few simple electric circuits: AC lighting circuit, battery charging circuit, energy meter, switch circuit, air cooling circuit, thermocouple circuit, DC lighting circuit, multimeter circuit, current transformer circuit, and single phase motor circuit.
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