科学家发明哈里•波特隐身斗篷
<p><span word="Hats">Hats</span> <span word="off">off</span> <span word="to">to</span> <span word="scientists">scientists</span> <span word="in">in</span> <span word="New">New</span> <span word="York">York</span>, <span word="who">who</span> <span word="have">have</span> <span word="managed">managed</span> <span word="to">to</span> <span word="produce">produce</span> <span word="a">a</span> <span word="cheap">cheap</span> ‘<span word="invisibility">invisibility</span> <span word="cloak">cloak</span>’ <span word="effect">effect</span> <span word="using">using</span> <span word="readily">readily</span> <span word="available">available</span> <span word="materials">materials</span> <span word="and">and</span> <span word="a">a</span> <span word="lot">lot</span> <span word="of">of</span> <span word="clever">clever</span> <span word="thinking">thinking</span>. <span word="Through">Through</span> <span word="a">a</span> <span word="combination">combination</span> <span word="of">of</span> <span word="optical">optical</span> <span word="lenses">lenses</span>, <span word="any">any</span> <span word="object">object</span> <span word="that">that</span> <span word="passes">passes</span> <span word="behind">behind</span> <span word="a">a</span> <span word="certain">certain</span> <span word="line">line</span> <span word="of">of</span> <span word="sight">sight</span> <span word="can">can</span> <span word="be">be</span> <span word="made">made</span> <span word="to">to</span> <span word="disappear">disappear</span> <span word="from">from</span> <span word="view">view</span>.</p><p>让我们向纽约的科学家们脱帽致敬吧。他们用富于奇思妙想的头脑，通过日常的既有材料制造出了低成本的“隐身斗篷”效果。通过一个各种凸透镜组装起来的装置，在特定的视角下，任何物体都可以从观察者的眼前消失。</p><p>“<span word="People">People</span> <span word="have">have</span> <span word="been">been</span> <span word="fascinated">fascinated</span> <span word="with">with</span> <span word="cloaking">cloaking</span> <span word="for">for</span> <span word="a">a</span> <span word="very">very</span> <span word="long">long</span> <span word="time">time</span>,” <span word="said">said</span> <span word="John">John</span> <span word="Howell">Howell</span>, <span word="a">a</span> <span word="Professor">Professor</span> <span word="of">of</span> <span word="Physics">Physics</span>. “<span word="It">It</span>’<span word="s">s</span> <span word="recently">recently</span> <span word="been">been</span> <span word="a">a</span> <span word="really">really</span> <span word="popular">popular</span> <span word="thing">thing</span> <span word="in">in</span> <span word="science">science</span> <span word="fiction">fiction</span> <span word="and">and</span> <span word="Harry">Harry</span> <span word="Potter">Potter</span>… <span word="I">I</span> <span word="think">think</span> <span word="people">people</span> <span word="are">are</span> <span word="really">really</span> <span word="excited">excited</span> <span word="about">about</span> <span word="the">the</span> <span word="prospect">prospect</span> <span word="of">of</span> <span word="just">just</span> <span word="being">being</span> <span word="invisible">invisible</span>.”</p><p>“长久以来，人们一直对隐身术非常着迷。”物理学教授约翰·霍威尔说,“近年来，在科幻小说和《哈里·波特》系列里经常出现隐身术……我想，人们会对未来能够隐形的设想感到非常兴奋。”</p><p>“<span word="From">From</span> <span word="what">what</span> <span word="we">we</span> <span word="know">know</span> <span word="this">this</span> <span word="is">is</span> <span word="the">the</span> <span word="first">first</span> <span word="cloaking">cloaking</span> <span word="device">device</span> <span word="that">that</span> <span word="provides">provides</span> <span word="three">three</span>-<span word="dimensional">dimensional</span>, <span word="continuously">continuously</span> <span word="multidirectional">multidirectional</span> <span word="cloaking">cloaking</span>. <span word="I">I</span> <span word="imagine">imagine</span> <span word="this">this</span> <span word="could">could</span> <span word="be">be</span> <span word="used">used</span> <span word="to">to</span> <span word="cloak">cloak</span> <span word="a">a</span> <span word="trailer">trailer</span> <span word="on">on</span> <span word="the">the</span> <span word="back">back</span> <span word="of">of</span> <span word="a">a</span> <span word="semi">semi</span>-<span word="truck">truck</span> <span word="so">so</span> <span word="the">the</span> <span word="driver">driver</span> <span word="can">can</span> <span word="see">see</span> <span word="directly">directly</span> <span word="behind">behind</span> <span word="him">him</span>. <span word="It">It</span> <span word="can">can</span> <span word="be">be</span> <span word="used">used</span> <span word="for">for</span> <span word="surgery">surgery</span>, <span word="in">in</span> <span word="the">the</span> <span word="military">military</span>, <span word="in">in</span> <span word="interior">interior</span> <span word="design">design</span>, <span word="art">art</span>.”</p>
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