25 Aug 2011:
On-Road Charging Could Allow
‘Unlimited’ EV Driving, Researchers Say
Japanese researchers are developing a new system that they say could ultimately power electric vehicles (EVs) for travel across “unlimited” distances
without the hindrance of heavy batteries. While based on railway infrastructure in which individual cars are powered through overhead wires, the new EV technology would convert energy from overhead power lines into radio frequencies and transmit these frequencies to a metal track embedded under the surface of the road. The prototype electric vehicle, being developed by Toyota Central R&D Labs and Toyohashi University of Technology, is able to convert this radio frequency to functional voltage through a circular steel belt installed inside the tires. The researchers have already demonstrated the feasibility of their design through low-power laboratory experiments and argue that achieving an energy transfer of tens of kilowatts would make possible unrestricted expressway driving for EVs.
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Tribal people and ranchers join together to stop a project that would haul coal across their Montana land. Watch the video.
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The 2015 Yale e360 Video Contest winner documents a Northeastern town's bitter battle over a wind farm. Watch the video.
A 2015 Yale e360 Video Contest winner captures stunning images of wild salmon runs in Alaska. Watch the video.
video series looks at the staggering amount of food wasted in the U.S. – a problem with major human and environmental costs. Watch the video.
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