Wearable Smart Sensors Blog, lithium batteries lithium batteries, Wearable Smart Sensors Blog most recent posts http://blog.wearablesmartsensors.com/lithium_batteries en Mon, 18 Jun 2007 00:57:42 GMT 200 The Challenge is to locate a potentially injured Coal Miner, can you do it (lithium batteries) Posted by Bob Paddock: (lithium batteries) The Challenge is to locate a potentially injured Coal Miner, in a Coal Mine that has just collapsed, using some kind of technology (You don't want to send in even more people in to a dangerous location, if you don't have to do so). Sounds easy doesn't it The first answers is always "Use GPS". GPS is 100% completely useless<br>Tags: <b>miner tracking</b>, <b>coal mine</b>. Comments: 0. http://blog.wearablesmartsensors.com/miner_tracking/20070617-205742-The-Challenge-is-to-locate-a-potentially-injured-Coal-Miner-can-you-do-it http://blog.wearablesmartsensors.com/miner_tracking/20070617-205742-The-Challenge-is-to-locate-a-potentially-injured-Coal-Miner-can-you-do-it