A team of US researchers has come up
with an electricity system that does not need wires. This is a
breakthrough in what will hopefully be a wireless future. The
scientists, from the Massachusetts Institute of Technology, lit a
60-watt light bulb using magnetic fields. In the test, the power
source was just two metres away from the light, but the team hopes
they will soon be able to send electricity longer distances through
the air. They have dubbed their new invention “WiTricity”, or
wireless electricity. Although wi-fi has been around for some years
now, it has been limited to the transmission of information,
especially between computers and modems, printers and scanners. This
is the first time electrical appliances have been powered wirelessly.
This new development means that our
houses may be free from tangled wires. Gone will be the days of
having to unplug the vacuum to go from room to room, and of having
countless plugs hidden behind the TV and stereo. The new source of
delivering power to gadgets remotely may also reduce the number of
fires caused by poor wiring and overloaded sockets. It turns out the
concept is not so new. A century ago, inventor Nikola Tesla struck
upon the idea of building a huge tower in New York that would
wirelessly beam power to the city. Unfortunately, his idea never came
to fruition, until today, that is. It will still be a while before we
have wireless homes and offices. Safety experts will be checking
closely to ensure the power source causes us no harm.
- How would "wirelessness" make our life better?
- Match underlined words in the text to these meanings:
- completion: fruition
- gadgets: appliances
- spread: transmission
- jumbled: tangled
- faulty: poor
- invented: come up with
- send out: beam
- called: dubbed
- revolution: breakthrough
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