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First Step to Wireless Electricity
Mohir
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10
12-25-2007 9:33 AM
784 views
tags:
electricity
,
wireless
,
technology
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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/51fcdd4c-bd42-4695-9de8-f4a7dac0252b/B62BDFA3-E3D3-48BB-A380-0986F804CC60/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://discovermagazine.com/2008/jan/first-step-to-wireless-electricity" href="http://discovermagazine.com/2008/jan/first-step-to-wireless-electricity" style="font-size: 11px;">discovermagazine.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://discovermagazine.com/2008/jan/first-step-to-wireless-electricity"><P>Thanks to wireless technology, rechargers could become a thing of the past. In July, researchers at MIT extended the Wi-Fi concept to allow the beaming of power to anything that uses electricity. Freeing electrical transmission from power lines has been a dream since the days of pioneering electrical engineer <A target="_"blank"" href="http://www.pbs.org/tesla/ll/index.html" linkindex="60" set="yes">Nikola Tesla</A>. Today electricity can be transmitted via magnetic induction in such things as security swipe cards. But sending electricity this way is practical over only the smallest of distances.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://discovermagazine.com/2008/jan/first-step-to-wireless-electricity">The MIT Wi-Fi power demonstration, first <A target="_"blank"" href="http://www.sciencemag.org/cgi/content/abstract/1143254" linkindex="61" set="yes">published</A> in the journal <I>Science</I>, uses two precisely tuned coils to boost efficiency. Power is loaded into one large coil a couple of feet in diameter, causing electricity to surge back and forth more than a million times a second. These pulses of electricity create a flickering magnetic field that passes over most objects</blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;"> </td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/B62BDFA3-E3D3-48BB-A380-0986F804CC60/blog/" title="blog or email this clip"><img src="http://content6.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>
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