http://www.carboncommentary.com/2007/12/12/63 A critical appraisal of issues in the move to a low-carbon economy Mon, 06 Feb 2012 06:02:34 +0000 hourly 1 http://wordpress.org/?v=3.3.1 http://www.carboncommentary.com/2007/12/12/63/comment-page-1#comment-3247 What is the green way to enjoy music? iPod vs. Walkman - GreenWeb.org Mon, 21 Jun 2010 11:45:49 +0000 http://www.carboncommentary.com/2007/12/12/63#comment-3247 [...] For example, a popular model from Sony, the Walkman Professional WM-D6C is powered by 4 standard AA batteries (apx. 4 hours of play time). This gets us to the following calculation: to listen to music continuously for 7 hours we need around 7 AA – batteries (or 3-4 batteries for a 2 batteries Walkman model). Rawmaterials.com states that even though household batteries make up just 1% of the waste on a landfill site, they are responsible for an incredible 50% to 70% of all heavy metals found in the landfill. The solution to this problem could be the use of rechargeable batteries, but they need a separate recharging device and their performance tends to disappoint. Moreover, the average rechargeable battery is only actually charged 8 times before it is lost, accidentally thrown away or the recharger is broken, states Carboncommentary.com. [...] [...] For example, a popular model from Sony, the Walkman Professional WM-D6C is powered by 4 standard AA batteries (apx. 4 hours of play time). This gets us to the following calculation: to listen to music continuously for 7 hours we need around 7 AA – batteries (or 3-4 batteries for a 2 batteries Walkman model). Rawmaterials.com states that even though household batteries make up just 1% of the waste on a landfill site, they are responsible for an incredible 50% to 70% of all heavy metals found in the landfill. The solution to this problem could be the use of rechargeable batteries, but they need a separate recharging device and their performance tends to disappoint. Moreover, the average rechargeable battery is only actually charged 8 times before it is lost, accidentally thrown away or the recharger is broken, states Carboncommentary.com. [...]

]]> http://www.carboncommentary.com/2007/12/12/63/comment-page-1#comment-164 dp Wed, 19 Dec 2007 08:11:17 +0000 http://www.carboncommentary.com/2007/12/12/63#comment-164 The 12v argument is one I've been wondering about since the number of adapted devices in my house exceed the number of mains voltage devices. (I now have 14 mains appliances and at least double that number of 3v-25v DC devices.) It's an absurdity of the marketplace that a low-power multi-tap device is still not available. I have 10 power block extensions of at least four sockets each in just the kitchen and lounge. I would much prefer four multi-tap devices that could feed printer, USB hub, phone, camera, audio and lighting directly. The 12v argument is one I’ve been wondering about since the number of adapted devices in my house exceed the number of mains voltage devices. (I now have 14 mains appliances and at least double that number of 3v-25v DC devices.) It’s an absurdity of the marketplace that a low-power multi-tap device is still not available. I have 10 power block extensions of at least four sockets each in just the kitchen and lounge. I would much prefer four multi-tap devices that could feed printer, USB hub, phone, camera, audio and lighting directly.

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