Can you charge your cell phone with a fuel cell?

Author's Note

I'm fascinated by fuel cells. I love the thought of harnessing a chemical reaction to generate electricity. It almost seems like tricking physics to do work for us -- we split up a happy atom into an ion and an electron. These two particles really want to get back together because of their opposite charges. Then we swoop the ion through a barrier through which the electron can't pass. That little electron wants to get over to that ion more than anything. Then we give the electron a road to get to that ion but it has to do work along the way. The electron does what we want it to do, and we get power as a result. Not only have we mastered physics, we've also anthropomorphized subatomic particles in the process! I love it.

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