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With just the right equipment in a laboratory setting, you can use the energy in a key fob battery to cause a spark. You can then use that to start a fire under the right conditions. However, tha...
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#1: Attribution notice removed
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System
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2020-06-03T15:54:27Z (over 4 years ago)
Source: https://outdoors.stackexchange.com/a/20521 License name: CC BY-SA 4.0 License URL: https://creativecommons.org/licenses/by-sa/4.0/