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quinta-feira, 4 de outubro de 2012

Thunder (and lightning) Road: Moment motorist is struck by bolt from the sky as he drives down busy highway

At http://www.dailymail.co.uk/sciencetech/article-2211184/Moment-driver-struck-lightning-drives-busy-highway.html?ITO=1490

Thunder (and lightning) Road: Moment motorist is struck by bolt from the sky as he drives down busy highway

By Eddie Wrenn

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It seems a normal commute during a normal, slightly wet day in Russia.

But suddenly the ire of the heavens opens up above the highway- and a bolt of lightning slams into the roof of an SUV, leaving the driver stunned, shaken - and perhaps a little shocked.

Luckily for the driver, he appears to be left unharmed by the thousand-volt hit and in the footage, uploaded to YouTube this month, he carries on driving for a few seconds, before rolling to a stop.

The driver seems unharmed by the incident, likely saved by his vehicle' metal construct.

While you might assume the rubber tyres of a vehicle is responsible for the safety of the driver, it is more likely the Faraday Cage principle that protects him.

A largely metal object, or object surrounded by a metal mesh, will spread the force of a ligtning strike across the entire surface area, leaving the insides untouched by the current.

This protects passengers who are within an airplane, and is also similar technology to how a microwave works - although in this case the cage is keeping the radio-wave transmissions from escaping the... ( more at http://www.dailymail.co.uk/sciencetech/article-2211184/Moment-driver-struck-lightning-drives-busy-highway.html?ITO=1490 )

Video at: http://www.dailymail.co.uk/sciencetech/article-2211184/Moment-driver-struck-lightning-drives-busy-highway.html?ITO=1490

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