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Last Updated: Saturday, 21 February, 2004, 15:37 GMT
Power lines spark light show
The light show
The field lights up as darkness falls each evening

Hundreds of fluorescent tubes have been "planted" in a field in an art event demonstrating electricity fields under power lines.

Rows of lights are flickering into life each evening as a result of emissions from the cables above.

The light show in a field at the side of the A46 between Bristol and Bath is the work of Richard Box, artist-in-residence in the Department of Physics at the University of Bristol.

Colleague Professor Denis Henshaw, whose study of the effects on health of living close to power lines is internationally recognised, said the "sculpture" was creative and effective.

"It illustrates graphically that power lines do indeed have these electrical fields around them."

Richard Box said there was an interactive element for visitors to the site.

"You affect the lights by your proximity because you're a much better conductor than a glass tube.

"There's sound as well as light - a crackling that corresponds to the flashing of the lights.

"There's a certain smell too and your hair stands slightly on end."

The exhibition, which is on display from 1700 GMT until 2000 GMT each day until Sunday 29 February, is on a hillside near junction 18 of the M4.

The university has advised members of the public wishing to see "Field" to arrive before sunset, wear outdoor clothing and footwear and bring a torch for making their way back to the car park.

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