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Lightning What's the story.pdf

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Lightning, “What’s the story?” September 2014 Simon Tose – Global Mining Optimisation Manager Wealth Unearthed “Lightning, What’s the story?” ã Unusual number of incidents in Africa past 2 years ã ã ã Quoted research 10 to 20 years old ã ã Multiple hole events No major change in weather patterns Electric & Old technology Published articles conclude that a direct lightning strike on a single charged hole could cause an event ã Hence regulations/safety policies require evacuation of bla
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  Lightning, “What’s the story?” September 2014 Wealth Unearthed Simon Tose –Global Mining Optimisation Manager  “Lightning, What’s the story?” ã Unusual number of incidents in Africa past 2 years ã Multiple hole events ã No major change in weather patterns ã Quoted research 10 to 20 years old ã Electric & Old technology ã Published articles conclude that a direct lightning strike on a  single charged hole could  cause an event ã Hence regulations/safety policies require evacuation of blast area when storm approaches “Clouds, Lightning, Airlgow and Lights of Civilization in Africa” by NASA  Lightning… ã Lightning is a massive electrostatic discharge ã Within clouds ã Between a cloud and the earth ã Commonly referred to as a strike if it hits an object on the ground ã It is estimated that an average bolt of lightning carries: ã An electric current of 30000 amperes (30kA) ã Transfers 15 coulombs of electric charge ã 500 megajoulesof energy ã Useless fact: enough energy to toast 100000 slices of bread…
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