http://www.dailymail.co.uk/sciencetech/art...-lightning.html




It has long been known that lightning might produce X-rays but this is this first time they have been captured on camera.

The picture could help scientists better understand what causes lightning and predict its behaviour.

The grainy images were taken by Joseph Dwyer, a physics professor at the Florida Institute of Technology. He said: ‘This is actually sort of what Superman would see. Superman has X-ray vision.’

He added: ‘We understand how a star explodes halfway across the universe better than we understand the lightning right above our heads.’

The picture was taken with a huge camera fitted with 30 radiation detectors combined with software that turns voltage measurements into images.

Each detector contributes data to the picture, so the result looks like a photo with only 30 pixels.

Lightning occurs when a negative charge builds within a cloud and then is released downward, connecting with a positive charge. Once that connection is made the bolt of lightning discharges and we get the flash of colour we are familiar with.

understanding lightning is NBTD??

why they need to x ray machine?

the x-ray machine use in hospital generate x-ray to pass through human body and create x-ray image on detector. this experiment only need detect the x-ray generate by the lightning itself.

This post has been edited by robertngo: Dec 18 2010, 12:33 PM