I agree that ghosts only appear to the sick, but that only proves that they are unable to appear except to the sick, not that they don’t exist

August 13, 2013 § Leave a comment


South Korea has rolled out the world’s first road-powered electric vehicle network. The network consists of special roads that have electrical cables buried just below the surface, which wirelessly transfer energy to electric vehicles via magnetic resonance. Road-powered electric vehicles are exciting because they only require small batteries, significantly reducing their overall weight and thus their energy consumption. There’s also the small fact that, with an electrified roadway, you never have to plug your vehicle in to recharge it, removing most of the risk and range anxiety associated with electric vehicles (EVs).

The network consists of 24 kilometers (15 miles) of road in the city of Gumi, South Korea. For now, the only vehicles that can use the network are two Online Electric Vehicles (OLEV) — public transport buses that run between the train station and In-dong.

Exact details of the system are hard to come by, but we believe that the power is delivered by cables that are around 12 inches (30cm) below the road surface. The power is transmitted wirelessly via Shaped Magnetic Field in Resonance (SMFIR), a technology developed by the Korea Advanced Institute of Science and Technology (KAIST) that essentially runs 100 kilowatts of power through some cables at a very specific frequency (20 kHz in this case), creating a 20 kHz electromagnetic field. The underside of the bus is equipped with a pick-up coil that’s tuned to pick up that frequency, and thus AC electricity is produced via magnetic resonance. Transmission efficiency is an impressive 85% thanks to the “shaped” part of the technology, which targets the electromagnetic field at the vehicle, so that less energy is lost to the environment.  read more

PHOTOGRAPH: Levi Jackson

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