【導(dǎo)讀】屬的全國重點大學(xué)。**大學(xué)迄今為止，是中國西北地區(qū)唯一的部屬重點綜合。**大學(xué)的改革與發(fā)展對于占國土面積三分之一、聚居著19個民族。的西北地區(qū)經(jīng)濟建設(shè)、科技進步和社會發(fā)展，具有重要影響。碩士（ＭＢＡ）的高校之一。學(xué)?，F(xiàn)設(shè)成人教育學(xué)院、經(jīng)濟管理學(xué)院、化學(xué)。旱農(nóng)業(yè)生態(tài)國家重點實驗室及應(yīng)用磁學(xué)教育部開放實驗室。**大學(xué)現(xiàn)有本科專業(yè)51個。6,569人，文科學(xué)生占%,理工科學(xué)生占%。其中，來自西北五省區(qū)的學(xué)生占總數(shù)的%，來。我校本科畢業(yè)生中，每年約有20%的學(xué)生考取。了重大突破，辦學(xué)效益大為提高。開發(fā)總公司，創(chuàng)收逐年增長。為了響應(yīng)中央關(guān)于高等學(xué)校要面向經(jīng)濟建設(shè)主。1995年，**大學(xué)與中國科學(xué)院**分院聯(lián)合成立。同時，學(xué)校利用一切有利條件，廣泛開展對西北地區(qū)干部和科技人員的。與此同時，積極開展校內(nèi)管理改革，進行定編定崗，實行勞。幾年來，**大學(xué)形成了“強化基礎(chǔ)，因材施教，開發(fā)。目前，國家在**大學(xué)設(shè)立了物理、化學(xué)、生物、地理、

　　

【正文】 u39。d hear my foot tapping rapidly under my desk. I39。m anxious for the next one: a space capsule hanging from a crane in the New Mexico desert. It39。s like the set for a Gee Lucas movie floating to the edge of space. You and I will have the chance to watch a man take a leap into an unimaginable free fall from the edge of space live. The (lack of) air up there Watch man jump from 96,000 feet Tuesday, I sat at work glued to the live stream of the Red Bull Stratos Mission. I watched the balloons positioned at different altitudes in the sky to test the winds, knowing that if they would just line up in a vertical straight line we would be go for launch. I feel this mission was created for me because I am also a journalist and a photographer, but above all I live for taking a leap of faith the feeling of pushing the envelope into uncharted territory. 專業(yè)好文檔 The guy who is going to do this, Felix Baumgartner, must have that same feeling, at a level I will never reach. However, it did not stop me from feeling his pain when a gust of swirling wind kicked up and twisted the partially filled balloon that would take him to the upper end of our atmosphere. As soon as the 40acre balloon, with skin no thicker than a dry cleaning bag, scraped the ground I knew it was over. How claustrophobia almost grounded supersonic skydiver With each twist, you could see the wrinkles of disappointment on the face of the current record holder and cap (capsule munications), Col. Joe Kittinger. He hung his head low in mission control as he told Baumgartner the disappointing news: Mission aborted. The supersonic descent could happen as early as Sunday. The weather plays an important role in this mission. Starting at the ground, conditions have to be very calm winds less than 2 mph, with no precipitation or humidity and limited cloud cover. The balloon, with capsule attached, will move through the lower level of the atmosphere (the troposphere) where our daytoday weather lives. It will climb higher than the tip of Mount Everest ( miles/ kilometers), drifting even higher than the cruising altitude of mercial airliners ( miles/ kilometers) and into the stratosphere. As he crosses the boundary layer (called the tropopause), he can expect a lot of turbulence. The balloon will slowly drift to the edge of space at 120,000 feet ( miles/ kilometers). Here, Fearless Felix will unclip. He will roll back the door. Then, I would assume, he will slowly step out onto something resembling an Olympic diving platform. Below, the Earth bees the concrete bottom of a swimming pool that he wants to land on, but not too hard. Still, he39。ll be traveling fast, so despite the distance, it will not be like diving into the deep end of a pool. It will be like he is diving into the shallow end. Skydiver preps for the big jump When he jumps, he is expected to reach the speed of sound 690 mph (1,110 kph) in less than 40 seconds. Like hitting the top of the water, he will begin to slow as he approaches the more dense air closer to Earth. But this will not be enough to stop him pletely. If he goes too fast or spins out of control, he has a stabilization parachute that can be deployed to slow him down. His team hopes it39。s not needed. Instead, he plans to deploy his 270squarefoot (25squaremeter) main chute at an altitude of around 5,000 feet (1,524 meters). In order to deploy this chute successfully, he will have to slow to 172 mph (277 kph). He will have a reserve parachute that will open automatically if he loses consciousness at mach speeds. 專業(yè)好文檔 Even if everything goes as planned, it won39。t. Baumgartner still will free fall at a speed that would cause you and me to pass out, and no parachute is guaranteed to work higher than 25,000 feet (7,620 meters). It might not be the moon, but Kittinger free fell from 102,800 feet in 1960 at the dawn of an infamous space race that captured the hearts of many. Baumgartner will attempt to break that record, a feat that boggles the mind. 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