WiFi太慢？试试Li
<p> 现在，我们身边的好多地方都有<span word="WiFi">WiFi</span>信号覆盖了。不过总能听到有人抱怨说信号不稳，或者网速太慢。好消息来啦！据说，研究人员已经研究出了更加便捷和快速的数据传输方式，你家的台灯就能帮你下电影呢！听起来是不是很酷？</p><p> </p><p> <span word="Imagine">Imagine</span> <span word="only">only</span> <span word="needing">needing</span> <span word="to">to</span> <span word="hover">hover</span> <span word="under">under</span> <span word="a">a</span> <span word="street">street</span> <span word="lamp">lamp</span> <span word="to">to</span> <span word="get">get</span> <span word="public">public</span> <span word="internet">internet</span> <span word="access">access</span>, <span word="or">or</span> <span word="downloading">downloading</span> <span word="a">a</span> <span word="movie">movie</span> <span word="from">from</span> <span word="the">the</span> <span word="lamp">lamp</span> <span word="on">on</span> <span word="your">your</span> <span word="desk">desk</span>. <span word="There">There</span>'<span word="s">s</span> <span word="a">a</span> <span word="new">new</span> <span word="technology">technology</span> <span word="on">on</span> <span word="the">the</span> <span word="block">block</span> <span word="which">which</span> <span word="could">could</span>, <span word="quite">quite</span> <span word="literally">literally</span> <span word="as">as</span> <span word="well">well</span> <span word="as">as</span> <span word="metaphorically">metaphorically</span>, '<span word="throw">throw</span> <span word="light">light</span> <span word="on">on</span>' <span word="how">how</span> <span word="to">to</span> <span word="meet">meet</span> <span word="the">the</span> <span word="ever">ever</span>-<span word="increasing">increasing</span> <span word="demand">demand</span> <span word="for">for</span> <span word="high">high</span>-<span word="speed">speed</span> <span word="wireless">wireless</span> <span word="connectivity">connectivity</span>. <span word="Radio">Radio</span> <span word="waves">waves</span> <span word="are">are</span> <span word="replaced">replaced</span> <span word="by">by</span> <span word="light">light</span> <span word="waves">waves</span> <span word="in">in</span> <span word="a">a</span> <span word="new">new</span> <span word="method">method</span> <span word="of">of</span> <span word="data">data</span> <span word="transmission">transmission</span> <span word="which">which</span> <span word="is">is</span> <span word="being">being</span> <span word="called">called</span> <span word="Li">Li</span>-<span word="Fi">Fi</span>(<span word="Light">Light</span> <span word="Fidelity">Fidelity</span>).</p><p> 想象一下这样的场景，在街灯下走两步就能连入公共区域因特网，通过桌上的台灯就能下载电影。现在，有这样一种新技术就可以解决上述这些高速无线网络连接的需求问题。这种新技术叫做<span word="Li">Li</span>-<span word="Fi">Fi</span>（光保真）技术，是用光波取代无线电波传输数据的技术。</p><p> <span word="As">As</span> <span word="well">well</span> <span word="as">as</span> <span word="being">being</span> <span word="a">a</span> <span word="potential">potential</span> <span word="solution">solution</span> <span word="to">to</span> <span word="our">our</span> <span word="ever">ever</span>-<span word="increasing">increasing</span> <span word="hunger">hunger</span> <span word="for">for</span> <span word="bandwidth">bandwidth</span>, <span word="Li">Li</span>-<span word="Fi">Fi</span> <span word="has">has</span> <span word="other">other</span> <span word="advantages">advantages</span> <span word="over">over</span> <span word="WiFi">WiFi</span>, <span word="such">such</span> <span word="as">as</span> <span word="being">being</span> <span word="safe">safe</span> <span word="to">to</span> <span word="use">use</span> <span word="on">on</span> <span word="an">an</span> <span word="aircraft">aircraft</span>, <span word="in">in</span> <span word="hospitals">hospitals</span> <span word="and">and</span> <span word="medical">medical</span> <span word="devices">devices</span>, <span word="and">and</span> <span word="even">even</span> <span word="underwater">underwater</span>, <span word="where">where</span> <span word="WiFi">WiFi</span> <span word="doesn">doesn</span>'<span word="t">t</span> <span word="work">work</span> <span word="at">at</span> <span word="all">all</span>. <span word="Research">Research</span> <span word="suggests">suggests</span> <span word="that">that</span> <span word="Li">Li</span>-<span word="Fi">Fi</span> <span word="has">has</span> <span word="the">the</span> <span word="potential">potential</span> <span word="to">to</span> <span word="be">be</span> <span word="faster">faster</span>, <span word="safer">safer</span> <span word="and">and</span> <span word="cheaper">cheaper</span> <span word="than">than</span> <span word="conventional">conventional</span> <span word="WiFi">WiFi</span> <span word="technology">technology</span>.</p>
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