coal mine, Wearable Smart Sensors Blog most recent posts http://blog.wearablesmartsensors.com/coal_mine en Mon, 18 Jun 2007 00:57:42 GMT 200 Posted by Bob Paddock: (coal mine) 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 Posted by Bob Paddock: (coal mine) Someone once asked me if "you had had six to seven million dollars to spend on for research contracts in trapped miner communications and miner tracking systems for miners, what would you do with it ". These were my suggestions, as to how I would use the money: James H. Rogers: Underground and Underwater Radio Antenna . <br>Tags: <b>miner tracking</b>, <b>miner location</b>. Comments: 0. http://blog.wearablesmartsensors.com/miner_tracking/20070617-200438-If--I-had-seven-million-dollars-how-I-would-spend-it-on-miner-tracking http://blog.wearablesmartsensors.com/miner_tracking/20070617-200438-If--I-had-seven-million-dollars-how-I-would-spend-it-on-miner-tracking