天文学课件4.pptVIP

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2017-09-07 发布于江西
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天文学课件4.ppt

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天文学课件4

Objects in Rotational Motion Wheel Why we have legs instead of wheels? Pendulum (单摆) Gravitation (引力) Gravitation Typhoon and Tornado (龙卷风) Coriolis force Clockwise or counter-clockwise? Storms on Jupiter (木星) Gyroscope (陀螺仪) Peg-top Rotational shots Dart（飞镖） Stabilization VS energy transition Tank’s gun Armor Piercing Fin Stabilized Discarding Sabot (尾翼稳定脱壳穿甲弹) Mortar (迫击炮) Arrow Air-air Missile Electric drill Bicycles Bicycles Motorcycle Zhukovsky swivel chair (茹科夫斯基转椅) Diesel motor Helicopter Black hawk down!Mogadishu , Somalia (Oct. 1993) No TAilRotor (NOTAR,无尾桨直升机 ) Other NOTAR Antilock Braking system(ABS) Antilock Braking system(ABS) Spaceship and Satellite The different satellite orbit What is GPS (Global Position System)? How to make the antenna aim at the earth? Launch Rocket Israel launch rocket,to east or west? Weightlessness or zero gravity ? I believe I can fly！ Roller coaster Acrobatic (特技飞行动作 ) The Solar System The origin of Solar System The galaxy Typhoon Thanks a lot!See you next week! zhj_fox@zju.edu.cn Diving In the air, motorcycle riders control their bikes by revving up their motors to spin the rear tire faster, or by putting on the brakes to slow the tire. This changes the angular momentum of their system internally, giving them control of the angle at which they come down. Vehicle Why? MD 600N K-MAX Propeller-driven aircraft (螺旋桨飞机) Why? Antilock Braking system(ABS) Turnplate Giant stride (carousel) Low Earth Orbit (LEO) Middle Earth Orbit (MEO) Sun-synchronous orbit (SSO) 太阳同步轨道 Polar orbit meteorological satellite 极轨气象卫星 Geostationary Transfer Orbit (GTO) 地球同步转移轨道 Geosynchronous Orbit (GEO) 地球同步轨道 Do you know the altitude of geostationarysatellite (同步卫星)? How does “BeiDou” work? Why we built a new rocket launch base in WenChang, HaiNan? Can we have this feeling on the earth? Any other way? Roller coaster * * Why wheel? Foucault pendulum experiment Rotational Inertia A body at rest tends to remain at rest. A