Wow. "Cool!" was my first reaction, then "crap" because my favorite neighborhood running trail has powerlines that crisscross over it several times. Wonder if this works with the compact flourescents that 'they' keep telling us we should use to replace conventional lightbulbs. If so, I could carry a couple of those with me, and do a night run. 
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Strength does not come from how much weight you can lift, or how many miles you can run. It comes from knowing that you set a goal, and rose to the challenge. Strength comes from within.
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