D. imaginative
C
The Green Microgym in Portland,Oregon has all the usual stuff you'd expect-sweaty people,loud music,smooth exercequipment-but it has some extras as well. Everywhere you look,there are power wires. And these aren't the typical kind that let you surf the Web while you ride a spin cycle-although you can do that too.The gym uses special exercise equipment that captures(捕获)the energy you create while riding,converts(转换)it into electricity and channels it into the power outlets(插座).
The idea of using exercise equipment to produce electricity is not new. A gym in Hong Kong has been doing this since 2007. But clean (and healthy)energy is just now starting to catch on in U. S. gyms·"We have seen a significant increase in interest in the past six months,which is a good sign that fitness centers are ready to spend money on green technologies,” says Mike Curnyn,co-founder of the Green Revolution,a Connecticut-based firm that wires bikes into a central battery that can store energy.
The Green Microgym,first opened in 2008,has more than 200 members and is doing so well that owner Adam Boesel opened another one five miles from the original.Although membership costs about the same as ordinary gyms,customers can earn gift certificates from local businesses for watts produced while exercising.An average workout creates 37. 5 watt hours,which is enough to power a phone for a week.
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