大自然的启示真多
<p>而在人人讨厌的苍蝇身上竟然也有发明！</p><p><span word="And">And</span> <span word="there">there</span> <span word="are">are</span> <span word="inventions">inventions</span> <span word="in">in</span> <span word="the">the</span> <span word="flies">flies</span> <span word="that">that</span> <span word="everyone">everyone</span> <span word="hates">hates</span>!</p><p>昆虫学家研究发现苍蝇的后翅退化成一对平衡棒。当它飞行时平衡棒以一定的频率进行机械振动可以调节翅膀的运动方向是保持苍蝇身体平衡的导航仪。科学家据此原理研制成一代新型导航仪——振动陀螺仪大大改进了飞机的飞行性能<span word="LlJ">LlJ</span>可使飞机自动停止危险的滚翻飞行在机体强烈倾斜时还能自动恢复平衡即使是飞机在最复杂的急转弯时也万无一失。苍蝇的复眼包含4000个可独立成像的单眼能看清几乎360。范围内的物体。在蝇眼的启示下人们制成了由1329块小透镜组成的一次可拍1329张高分辨率照片的蝇眼照像机在军事、医学、航空、航天上被广泛应用。</p><p><span word="Entomologists">Entomologists</span> <span word="have">have</span> <span word="found">found</span> <span word="that">that</span> <span word="the">the</span> <span word="back">back</span> <span word="wings">wings</span> <span word="of">of</span> <span word="flies">flies</span> <span word="degenerate">degenerate</span> <span word="into">into</span> <span word="a">a</span> <span word="pair">pair</span> <span word="of">of</span> <span word="balance">balance</span> <span word="bars">bars</span>. <span word="When">When</span> <span word="it">it</span> <span word="flies">flies</span>, <span word="the">the</span> <span word="balance">balance</span> <span word="bar">bar</span> <span word="vibrates">vibrates</span> <span word="mechanically">mechanically</span> <span word="at">at</span> <span word="a">a</span> <span word="certain">certain</span> <span word="frequency">frequency</span> <span word="to">to</span> <span word="adjust">adjust</span> <span word="the">the</span> <span word="movement">movement</span> <span word="direction">direction</span> <span word="of">of</span> <span word="wings">wings</span>, <span word="which">which</span> <span word="is">is</span> <span word="a">a</span> <span word="navigator">navigator</span> <span word="to">to</span> <span word="keep">keep</span> <span word="the">the</span> <span word="fly">fly</span>'<span word="s">s</span> <span word="body">body</span> <span word="balanced">balanced</span>. <span word="According">According</span> <span word="to">to</span> <span word="this">this</span> <span word="principle">principle</span>, <span word="scientists">scientists</span> <span word="have">have</span> <span word="developed">developed</span> <span word="a">a</span> <span word="new">new</span> <span word="generation">generation</span> <span word="of">of</span> <span word="navigator">navigator</span> <span word="vibration">vibration</span> <span word="gyroscope">gyroscope</span>, <span word="which">which</span> <span word="has">has</span> <span word="greatly">greatly</span> <span word="improved">improved</span> <span word="the">the</span> <span word="flight">flight</span> <span word="performance">performance</span> <span word="of">of</span> <span word="the">the</span> <span word="aircraft">aircraft</span>. <span word="LLJ">LLJ</span> <span word="can">can</span> <span word="make">make</span> <span word="the">the</span> <span word="aircraft">aircraft</span> <span word="automatically">automatically</span> <span word="stop">stop</span> <span word="the">the</span> <span word="dangerous">dangerous</span> <span word="rollover">rollover</span> <span word="flight">flight</span> <span word="and">and</span> <span word="automatically">automatically</span> <span word="restore">restore</span> <span word="the">the</span> <span word="balance">balance</span> <span word="when">when</span> <span word="the">the</span> <span word="body">body</span> <span word="tilts">tilts</span> <span word="strongly">strongly</span>, <span word="even">even</span> <span word="when">when</span> <span word="the">the</span> <span word="aircraft">aircraft</span> <span word="is">is</span> <span word="in">in</span> <span word="the">the</span> <span word="most">most</span> <span word="complex">complex</span> <span word="sharp">sharp</span> <span word="turn">turn</span>. <span word="The">The</span> <span word="fly">fly</span>'<span word="s">s</span> <span word="compound">compound</span> <span word="eye">eye</span> <span word="contains">contains</span> 4000 <span word="single">single</span> <span word="eyes">eyes</span> <span word="that">that</span> <span word="can">can</span> <span word="be">be</span> <span word="imaged">imaged</span> <span word="independently">independently</span> <span word="and">and</span> <span word="can">can</span> <span word="see">see</span> <span word="almost">almost</span> 360. <span word="Objects">Objects</span> <span word="in">in</span> <span word="range">range</span>. <span word="Under">Under</span> <span word="the">the</span> <span word="inspiration">inspiration</span> <span word="of">of</span> <span word="fly">fly</span> <span word="eye">eye</span>, <span word="people">people</span> <span word="have">have</span> <span word="made">made</span> <span word="a">a</span> <span word="fly">fly</span> <span word="eye">eye</span> <span word="camera">camera</span> <span word="which">which</span> <span word="is">is</span> <span word="composed">composed</span> <span word="of">of</span> 1329 <span word="small">small</span> <span word="lenses">lenses</span> <span word="and">and</span> <span word="can">can</span> <span word="take">take</span> 1329 <span word="high">high</span>-<span word="resolution">resolution</span> <span word="photos">photos</span> <span word="at">at</span> <span word="a">a</span> <span word="time">time</span>, <span word="which">which</span> <span word="is">is</span> <span word="widely">widely</span> <span word="used">used</span> <span word="in">in</span> <span word="military">military</span>, <span word="medical">medical</span>, <span word="aviation">aviation</span> <span word="and">and</span> <span word="aerospace">aerospace</span>.</p>
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