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Just like generators, motors also consists two basic parts, stator and rotor. In a motor, we give electric supply to both the stator and rotor windings which causes a mechanical force between the stator and rotor. This force causes the rotor to rotate.
All non-believers, who don't think that "rock and roll" is dead, should examine today's music charts. Whether its Billboard or Rolling Stone or America's Top 40, the top of the charts are ruled by such artists as Rihanna, Lil' Wayne, Kelly Clarkson, Bruno Mars, and LMFAO, not just one rock artist within the bunch.
Though research began almost 10 years ago, Sony and its particular partners still did not to produce final commercial product until mid 2006. The name Blu-Ray emanates from the blue laser that's accustomed to read info from a Blu-Ray formatted disc. This is versus the red laser helpful to read regular DVD discs. Yet exactly why is Blu-Ray superior to current DVD formats? Although Blu-Ray discs and players don't appear any different than standard DVDs, they're able to store much more information that means sharper picture, improved audio, and much more special features. DVDs can hold around eight gigabytes of information while Blu-Ray discs hold 50 gigabytes. Quite a difference. The maximum resolution of a DVD is 720x480 lines whereas Blu-Ray carries a maximum of 1920x1080 (also referred to as full HD). If you have spent $1000 or higher on the 1080p TV, you're not exploiting everything the TV can deliver when watching regular DVDs.
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
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