单词:stored-energy operating device
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So, you are on the Internet using a web browser. You know that thing with the address bar, and back button, and bookmarks. That thing you are in right now, up there, yeah, that's your web browser. If you like me when youre on your own computer, you s
OK, great, we smell vibrations. How? All right? 好吧,我们闻到的是震动。怎么闻到呢? Now when people ask this kind of question, they neglect something, which is that physicists are really clever, unlike biologists. 当人们问这个问
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Last month the journal Science reported that a Swedish company was planning on using the body heat generated by commuters in a Stockholm train station to
Motor-Free Device Reduces Stress from Walking 新型可穿戴附加设备有效减轻腿部肌肉的负荷 Devices that help people walk were once thought to be difficult, if not impossible, to design. Until recently, such a device required electrici
During her speech, Pritzker explains the central message of her visit to China and the U.S. side's approach to environmental protection. The central message of our visit is with responsible partnership we will do more business together and in doing s
The movement of finger swipes may soon be able to charge our cellphones. 手指滑动的动作可能很快就可以为我们的手机充电了。 Researchers at Michigan State University have created a new way to harvest energy from human motion, usi