Hydrogen-powered lawnmowers?

In a breakthrough that could make fuel cells practical for such small machines as lawnmowers and chainsaws, researchers have developed a new mechanism to efficiently control hydrogen fuel cell power.

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<p><a href="http://www.physorg.com/news88772830.html">Hydrogen-powered lawnmowers?</a></p> <p>In a breakthrough that could make fuel cells practical for such small machines as lawnmowers and chainsaws, researchers have developed a new mechanism to efficiently control hydrogen fuel cell power.</p>