研究人员展示了一块一便士大小的“核能电池”，该电池可利用放射性同位素的衰变产生电能。
Researchers have demonstrated a penny-sized "nuclear battery" that produces energy from the decay of radioisotopes.
很多专家认为未来的电能不会来自改良后的太阳能、风能、煤炭或核能，而将来自燃料电池。
Indeed, many experts believe that the future of electricity generation will not come from further refinement of solar, wind, coal or nuclear energy, but from fuel cells.
几位参议员不解，为什么国会偏偏钟情于风车和太阳电池板，其实核能产生的温室气体也微乎其微。
Several senators have asked why Congress should favour windmills and solar panels, when nuclear power also produces few greenhouse-gas emissions.
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