Korea Constructs Road That Wirelessly Charges Moving Electric Buses

An electric bus that charges its batteries while
driving (rather than while sitting idle in a
charging station) is no longer science fiction.
Researchers at Korea's Advanced Institute of
Science and Technology (KAIST) recently
constructed a seven and a half mile stretch of
asphalt roadway in the city of Gumi in South
Korea with specialized electric cables designed
to power batteries on a moving passenger bus.
The first of it's kind technology doesn't need
the vehicles to stop at a point to charge.
The bus's batteries are equipped with a novel
technology called "Shaped Magnetic Field In
Resonance" that sends electromagnetic fields
created by the electric cables buried in the
asphalt to the bus but not normal cars.
The technology recognizes vehicles capable of
accepting the electric charge and those that
cannot.
A coil in the battery can turn the
electromagnetic fields into electricity at a
distance of more than half a foot above the
road.