不祥野猫 不祥野猫
其实我小时候的梦想并不是要当什么科学家,我只是幻想自己是地主家的少爷,家有良田千顷,终日不学无术,没事领着一群狗奴才上街去
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对于美〔和谐〕国发射x-37b迷你航天飞机,你们有什么看法? 美军第二架X-37B“迷你航天飞机”发射升空 2011年03月06日 10:28:54  来源: 点击看大图   美军研制的第二架X-37B空天飞机5日从位于佛罗里达卡纳维拉尔角的肯尼迪航天中心发射升空。这是该机型第二次执行空间测试任务。X-37B是一种无人驾驶的太空飞行器,由美国波音公司负责研制。首架X-37B曾在轨道运行了7个多月(225天)。   从外形上看,X-37B与即将退役的美国航天飞机颇为“神似”,只是身材尺寸较小。这种飞机最早由美国宇航局负责开发,后来因经费有限,转给了美国空军管理。无人驾驶的X-37B由火箭送入轨道,最多靠太阳能电池供电绕地球运行9个月,然后像航天飞机一样滑行着陆。   全球首架“全自动返航并在机场着陆的无人驾驶轨道飞行器”是前苏联开发的“暴风雪”号航天飞机。当年,这架航天飞机至少比X-37B大了4倍以上。X-37B有9米长,4米宽,总重5000公斤,其货仓相当于小型货运卡车大小。   据悉,在X-37B发射升空后,所有运转都“自动进行”,无需地面技术人员遥控。美国空军透露,这种空天飞机将主要用来测试美军的侦察卫星技术以及导航和控制系统可靠性。美方宣称,X-37B可承担军事任务,但“不是一种太空武器”,而是用来获取情报的“轨道哨兵”。   与此同时,俄罗斯也正在研制类似的小型无人驾驶空天飞机。与传统的宇宙飞船相比,所谓空天飞机载重量大,而且能反复利用,因此效率更高。外界预测,空天飞机货仓较大,既能充当发射和保养平台,也可以用来袭击敌方侦察卫星,因此是名符其实的轨道多面手。
in the End It starts with one thingI don't know whIt It doesn't even matterHow hard you tryKeep that in mindI designed this rhyme[To explain in due timeAll I knowTime is a valuable thingWatch it fly byAs the pendulum swingsWatch it count downTo the end of the dayThe clock ticks life awayIt's so unrealDidn't look out belowWatch the time goRight out the windowTrying to hold on,But didn't even knowWasted it all justTo watch you goI kept everything inside andEven though I tried,It all fell apartWhat it meant to me willEventually be aMemory of a time when I tried so hardAnd got so farBut in the endIt doesn't even matterI had to fallTo lose it allBut in the endIt doesn't even matter One thing,I don't know whyIt doesn’t even matterHow hard you try,Keep that in mindI designed this rhyme,To remind myself howI tried so hardIn spite of the wayYou were mocking meActing like I wasPart of your propertyRemembering all theTimes you fought with meI'm surprised it got so (far)Things aren't the wayThey were beforeYou wouldn't evenRecognise me anymoreNot that youKnew me back thenBut it all comesBack to me (in the end)You kept everything insideAnd even though I tried,It all fell apartWhat it meant to me willEventually be aMemory of a time when I I tried so hardAnd got so farBut in the endIt doesn't even matterI had to fallTo lose it allBut in the endIt doesn't even matter I've put my trust in youPushed as far as I can goFor all thisThere's only one thing you should knowI've put my trust in youPushed as far as I can goFor all thisThere's only one thing you should know I tried so hardAnd got so farBut in the endIt doesn't even matterI had to fallTo lose it allBut in the endIt doesn't even matter
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