Comments on: More sterling technology journalism http://dansdata.blogsome.com/2007/06/09/more-sterling-technology-journalism/ the blog that is not dansdata.com Sun, 06 Dec 2009 21:40:41 +0000 http://wordpress.org/?v=1.5.1-alpha by: richardgaywood http://dansdata.blogsome.com/2007/06/09/more-sterling-technology-journalism/#comment-1074 Wed, 13 Jun 2007 19:07:48 +0100 http://dansdata.blogsome.com/2007/06/09/more-sterling-technology-journalism/#comment-1074 Does anyone know what sorts of current <a href="http://computerworld.com/action/article.do?command=viewArticleBasic&amp;articleId=9023963&amp;pageNumber=1" rel="nofollow">these </a>wireless pad chargers can deliver? As they are allegedly going to go on sale next month. Yeah, sure, my toothbrush charges this way but it takes hours and hours to fill a teeny tiny NiCd cell. I'm sure these sorts of inductive chargers can work OK (note how carefully that picture doesn't show the dongle that must be plugged into each device to actually deliver the charge, though) but I find it hard to believe they can get enough coil windings in there to deliver enough current to simultaneously charge an iPod and a mobile phone. Still, though, I live in hope! Does anyone know what sorts of current these wireless pad chargers can deliver? As they are allegedly going to go on sale next month. Yeah, sure, my toothbrush charges this way but it takes hours and hours to fill a teeny tiny NiCd cell.

I'm sure these sorts of inductive chargers can work OK (note how carefully that picture doesn't show the dongle that must be plugged into each device to actually deliver the charge, though) but I find it hard to believe they can get enough coil windings in there to deliver enough current to simultaneously charge an iPod and a mobile phone.

Still, though, I live in hope!

]]> by: JsD http://dansdata.blogsome.com/2007/06/09/more-sterling-technology-journalism/#comment-1072 Tue, 12 Jun 2007 21:40:32 +0100 http://dansdata.blogsome.com/2007/06/09/more-sterling-technology-journalism/#comment-1072 Not that unsuccessfully, as it happens . . . Not that unsuccessfully, as it happens . . .

]]> by: bmorey http://dansdata.blogsome.com/2007/06/09/more-sterling-technology-journalism/#comment-1071 Tue, 12 Jun 2007 09:34:26 +0100 http://dansdata.blogsome.com/2007/06/09/more-sterling-technology-journalism/#comment-1071 Meantime, my humble wireless optical mouse (A4tech "Battery Free") works this way. Coil in the mouse pad, coil in the mouse - works like a charm and it's a good business mouse too (don't know about gaming). Better quality than my Microsoft wireless mouse, which went in the bin because the wheel had worn out. My thought on reading the original article was, "Wasn't Tesla working on this, unsuccessfully, a century ago?" Meantime, my humble wireless optical mouse (A4tech "Battery Free") works this way. Coil in the mouse pad, coil in the mouse - works like a charm and it's a good business mouse too (don't know about gaming). Better quality than my Microsoft wireless mouse, which went in the bin because the wheel had worn out.

My thought on reading the original article was, "Wasn't Tesla working on this, unsuccessfully, a century ago?"

]]> by: trs80 http://dansdata.blogsome.com/2007/06/09/more-sterling-technology-journalism/#comment-1069 Sun, 10 Jun 2007 19:30:32 +0100 http://dansdata.blogsome.com/2007/06/09/more-sterling-technology-journalism/#comment-1069 http://arstechnica.com/news.ars/post/20070607-remote-laptop-power-up-not-anytime-soon.html has a much better explanation - it's not a standard transformer, it's a pair of tuned coils that create an evanescent field to achieve 15% power transfer over a few meters. It's still not pratical, since the coils must be precisely tuned to each other. http://arstechnica.com/news.ars/post/20070607-remote-laptop-power-up-not-anytime-soon.html has a much better explanation - it's not a standard transformer, it's a pair of tuned coils that create an evanescent field to achieve 15% power transfer over a few meters. It's still not pratical, since the coils must be precisely tuned to each other.

]]> by: Jonathan http://dansdata.blogsome.com/2007/06/09/more-sterling-technology-journalism/#comment-1064 Sat, 09 Jun 2007 14:48:18 +0100 http://dansdata.blogsome.com/2007/06/09/more-sterling-technology-journalism/#comment-1064 http://www.guardian.co.uk/life/badscience/story/0,12980,1564369,00.html has a great take on this kind of lousy reporting. http://www.guardian.co.uk/life/badscience/story/0,12980,1564369,00.html has a great take on this kind of lousy reporting.

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