I choose this experiment because i like doing stuff( projects‚ experiments.) in sports. I think this is a good experiment is a really fun and it falls good in the topic. I also chose this experiment because i think it’s really easy to do by yourself and i have all the materials to conduct it. i also chose this experiment because i’m kind of like an expert in this topic because i have been in football for like 3 years so i think i know alot about the balls grip and how it affects the length. I think
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CHINA High Speed Train The key technologies and maintenance system Gan Dunwen Associate Researcher China Academy of Railway Sciences 中国高速铁路网规划 China high speed railway development planning ¾ Speed upgrade on existing railways: 200 ~ 250km/h， 8000 km ¾ 41 Passenger Dedicated Lines by 2012‚ more than 13000 km; ¾ 16000km by 2020 CRH R&D System CRH R&D System Contents Key technologies for High Speed Trains HSTs Maintenance System in China Challenges to CRH Key technologies for HSTs
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as myself‚ but as I went up each flight‚ changes would be taking place. Step by step I would fill out: my legs would grow long‚ my arms harden into steel‚ and my hair would magically go straight and turn a golden color. . . . Supergirl had to be aerodynamic. Sleek and hard as a supersonic missile.” I chose this passage because I believe
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In the modern world where scientific evidence mostly holds the key to truth in knowledge‚ people have a tendency to not only believe what they see‚ but also seek to unearth the explanations behind their observations. As a result of rapid scientific advancement‚ I believe the pursuit of logical reasoning is a more practical approach to understand the world we live in. With many holding this rationalist mindset‚ people tend to laugh at the idea of the unbelievable‚ such as supernatural creatures that
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the Curtis P-40 Flying Tiger‚ the British Spitfire‚ the Japanese Zero‚ and the German Focke-Wulf. The aerodynamics of paper airplane flight is actually very complicated. You need to know that the basics of paper airplane flight‚ and regular airplane flight‚ are identical because they both create lift and drag. However paper airplanes look different than most airplanes. There are also some aerodynamic differences between paper airplanes and regular planes. These differences are not so definite‚ but do
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The Wright Brothers‚ Orville and Wilbur‚ were aerodynamic geniuses in the late 1800’s and early 1900’s. They lived a life of extraordinary inventions and major success. These two boys were together almost all of their lives‚ working and inventing things as one. As their life went on‚ inventions were made that would change the rest of the world forever. Orville and Wilbur were heroes to pilots and aerodynamic studiers throughout the whole world back then‚ and still to this present day. Wilbur Wright
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Evaporation and Transpiration Evaporation and transpiration (evapotranspiration) are components of hydrologic cycle‚ which at principle‚ can be calculated from meteorological observations such as temperature‚ humidity‚ radiation‚ wind speed‚ etc. The process‚ however‚ is quite complex and a substantial literature has been produced on it. In this chapter our focus is mainly on the concept and simple estimations of evaporation and transpiration. Mechanism of evaporation from water surfaces Here
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Introduction The thrill and anticipation of going up to serve in the tennis match of your life is starting to weigh down on you. Everybody knows that this opening serve is going to make or break the match‚ so you can’t mess this up. There are so many things to think about and consider‚ where do you want to hit the tennis ball‚ what about the force you put into the racket‚ which type of serve is best‚ the list goes on and on! What if there was a single equation that is able to determine the “Perfect
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similar to the Sukhoi Su-35 with which it shares many features and components Aerodynamics Two Sukhoi-30MKIs during a Thach Weave maneuver. Su-30MKI aerodynamic configuration is an unstable longitudinal triplane. The canard increases the aircraft lifting ability and deflects automatically to allow high angle-of-attack (AoA) flights allowing it to perform Pugachev’s Cobra. The integral aerodynamic configuration combined with thrust vectoring results in extremely capable maneuverability
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3.7 Wind Generators: There are three main parts in horizontal axis wind turbines: (1) a rotor‚ (2) an alternator‚ and (3) a tail. The rotor blades are attached to a central hub covered by a nose cone that improves aerodynamics. Three blades are generally present in upwind generators. This entire assembly rotates when wind blows past the blades‚ hence the name “rotor.” In many small wind turbines the rotor is coupled to a shaft which is coupled to an alternator‚ a device that produces AC electricity
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