described in paper by Ludwig Prandtl German professor Ludwig Prandtl presents one of the most important papers in the history of aerodynamics‚ an eight-page document describing the concept of a fixed "boundary layer‚" the molecular layer of air on the surface of an aircraft wing. Over the next 20 years Prandtl and his graduate students pioneer theoretical aerodynamics. 1910 First take off from a ship Eugene Ely pilots a Curtiss biplane on the first flight to take off from a ship. In November
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“In any moment of decision‚ The best thing you can do is the right thing‚ the next best thing is the wrong thing‚ and the worst thing you can do is nothing.” Teddy Roosevelt. In Of Mice and Men by John Steinbeck‚ towards the ending (spoiler) one of the main characters‚ George‚ has to kill his best friend Lennie after he accidentally kills Curley’s wife because she was screaming and he got scared‚ and broke her neck‚ killing her. The quote from the beginning relates to this in that George did the
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1. Sirius B is a white dwarf star‚ in orbit around Sirius‚ with a mass of 2.0 x 1030 kg (approximately the mass of the Sun)‚ and a radius of 2.4 x 107 m (approximately one-thirtieth of the radius of the Sun). a. What is the force on a 1.0 kg mass on the surface of Sirius B? [2.3 x 105 N] b. What is the acceleration due to gravity on the surface of Sirius B? [2.3 x 105 m/s2] 2. A 1000 kg communications satellite in synchronous orbit 42 400 km from the Earth’s centre gas a period of 24 h. Placed
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REPORT Purpose of this paper: This paper aims to inform interested parties about the development of aircraft piston engine emission factors. These have been measured and are provided by Swiss FOCA for the primary purpose of emission inventory calculations. Furthermore‚ FOCA presents findings about emissions performance and in-flight operation of aircraft piston engines and recommendations for emissions reduction. 33-05-003 Piston Engine Emissions_Swiss FOCA_Summary Report_070709_rit Reference:
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A little bit about the book... Anything I mention about the book can be mistakenly understood as ’spoilers’‚ so I would rather give a glance into the book without mentioning any events or plots of the story. Swami is a mischievous little kid of about 10 years old and living in the era where India was under the British ruling... Like most kids of that age‚ Swami is a kid who cannot stay at one place and absolutely hated school‚ even worse Mathematics. School is his absolute nightmare. Anyway the
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well could have sold it all for more money than she’d know what to do with‚ but she wanted to prove up on that land. Later‚ the book describes her laboured efforts to get it into shape‚ including near-death experiences and a whole lot of hard work. (spoiler alert) Even after all of her work went down the drain and she failed‚ having to give up her plot‚ she still didn’t give up‚ and started over with less than she began with going
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Man of Steel A young itinerant worker is forced to confront his secret extraterrestrial heritage when Earth is invaded by members of his race. Director is an American film director‚ film producer‚ and screenwriter‚ best known for action/science fiction films. After making his feature film debut with the 2004 remake Dawn of the dead‚ he gained wide recognition with the 2007 box office hit 300‚ adapted from writer-artist Frank Millers Dark Horse Comics miniseries of the same name‚
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Everyone started watching Bachelor in Paradise this season hoping that they could see Carly Waddell find love. Things didn’t go great last season with her and Kirk after he broke her heart. At the start of the show‚ Carly seemed to have a thing for Evan Bass‚ but then she said she didn’t want to be with him. Now it looks like things have changed. ABC shared that last night on Bachelor in Paradise Evan Bass admitted that he faked his injury‚ but it seems like it all worked out for them in the end
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by danger. His disobedience leads the preserve to near destruction and much more later in the book. Although his bravery is admirable‚ it often causes trouble. Yet‚ it is through this that he saves the day later in the series (you have to read it‚ spoilers). The story itself seems to demonstrate that it is through a harmonious balance of the two that they succeed most. Ruth “Gran” Sorenson (Betty White): Making up half of the husband wife team that protects the preserve‚ she is calm and knowledgeable
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City of Bones Made My Bones Rot (CONTAINS SPOILERS!) by: Eeshma Narula No. Just no. The well-known fantasy film‚ The Mortal Instruments: City of Bones is a total disappointment. Harald Zwart took an incredible book filled with emotion‚ adventure‚ and mystery and transformed it into 130 minutes of nothing. Cassandra Clare’s amazing writing and characterization was demolished by the horrible directing and simply not good enough acting. I’m sure Clare went home in tears. The story revolves around
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