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Technology Stocks : The Electric Car, or MPG "what me worry?"

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To: kidl who wrote (12726)3/28/2023 2:02:51 PM
From: Eric1 Recommendation   of 15211
Yes, mine ventilation can be critical especially with underground coal mines and resulting coal dust and methane leakage. Shall we say boom boom. A very potentially dangerous job!

Coal mines in Appalachia for example electrified mining equipment many decades ago (sealed, sparkproof electric motors for example). They were corded in the old days working the face of the mine ripping coal.

Just one spark with a combustible mixture.
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