万花筒 2011-05-11&05-12 健身发电两不误
时间：2019-01-07 作者：英语课 分类：万花筒2011年
英语课
It's a workout with two goals, mean green students are doing their bodies and the environment a favor when they hop 1 on these machines.
"When you talk about energy, you think about like the windmill and there the water and other things producing energy, not yourself, working out."
These 36 elliptical machines have been fitted with a device that captures the kinetic 2 energy they produced and converts it into electricity.
"That energy that they produce is usually just heat that escapes into the building, it is then turned into electricity, that's used right here in the Rec (Recreational) Center, to power the lights, to power everything."
As students rev 3 up, this monitor shows how much clean carbon free electricity is being produced. Stuart Birdseye works at the Rec Center and says more resistance means more energy.
"The students center using the equipment don't have to do anything different."
"And the developers claim that a typical 30 minute workout create enough electricity to power a laptop for an hour, or charge a cellphone up to 6 times."
"On how much money we are saving the school basically, it's gonna need to think about that way."
"We haven't had a long enough to see the impact on cost."
UNT (University of North Texas ) spent nearly 20,000 dollars to outfit 4 these ellipticals, the cost these machines may never pay back. But the school said it's more than the dollars they save, as students give just a little back, one workout at a time.
n.单脚跳，跳跃；vi.单脚跳，跳跃；着手做某事；vt.跳跃，跃过
- The children had a competition to see who could hop the fastest.孩子们举行比赛，看谁单足跳跃最快。
- How long can you hop on your right foot?你用右脚能跳多远？
adj.运动的；动力学的
- There exist many sources of energy both potential and kinetic.存在着许多势能和动能的能源。
- The kinetic theory of gases is the best known example.气体动力学理论就是最有名的例子。
v.发动机旋转，加快速度
- It's his job to rev up the audience before the show starts.他要负责在表演开始前鼓动观众的热情。
- Don't rev the engine so hard.别让发动机转得太快。