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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">全球互联网仅重50克 </h1> <p class="xg1"> 时间：2011-11-9 15:31<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(1420)</em> 评论: 0</p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>如果算上所有使用网络的家用个人电脑，互联网的重量就大约等同于三颗草莓。如果仅仅计算互联网上所存储的数据重量，得到的数据就会小很多。</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content">用<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电子</a>的重量来给互联网称重，这想法绝对另类，可就是有人这么独辟蹊径。一位英国数学家最近根据单个电子的重量和互联网电子的数量，计算出整个因特网重量约为50克，仅相当于一颗草莓。数学家估算称互联网上约有500万TB字节信息，但其重量却很轻。<br><br><a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测量</a>互联网重量的想法源自一位数学家的偶然发现。近日，这位数学家经过测量发现，当往电子阅读器增加新文档时，阅读器会增重，尽管增加的重量微乎其微。<br><br>不仅如此，当电池充电时，其重量也会增加，大约是添加一份文档后增重的1亿倍。由此，该数学家得出结论：信息也是有重量的！<br><br>最近，YouTube视频网站上的一个科学频道利用同样的运算方法算出了整个互联网的重量。令人惊讶的是，整个互联网的重量仅有50克，相当于一颗大草莓的重量。而网络包含的实际信息的重量还不及一粒灰尘。<br><br>Vsauce(YouTobe科学频道)称，假设不包括家用个人电脑，有7500万至1亿台服务器在支持网络运营，这个50克的数据就是互联网工作时所需要电力的重量。整个互联网的用电量相当于400亿瓦特左右，换算成质量的话和一颗饱满的草莓重量差不多。<br><br>如果算上所有使用网络的家用个人电脑，互联网的重量就大约等同于三颗草莓。如果仅仅计算互联网上所存储的数据重量，得到的数据就会小很多。<br><br>不过确定互联网具体有多少数据是件很困难的事。Vsauce采用的数据是Google公司首席执行官埃里克·施密特所估算的。施密特曾估计整个互联网大约有500万TB字节信息，而Google只占0.04%。Vsauce 估计的是这500万TB字节信息的重量。<br><br>为什么信息会有重量？爱因斯坦著名的能量守恒定律及公式很好地把能量和重量联系在一起。公式表明，拥有更多能量的东西，其重量也会更大。“存储”数据的信息比没有存储的信息拥有更多能量，这也就解释了为什么存储数据的信息会更重一些。<br><br>但是，存满数据的电子<a href="http://b.oecr.com/sell" target="_blank" class="relatedlink">产品</a>与没有存储数据的电子产品之间的重量差异，远不及电池充电前后所存在的重量差异。 <div><font color="#808080" size="2"><img src="http://www.oecr.com/xwb/images/bgimg/icon_logo.png"> 已同步至 <a 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