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A three-year survey of bidding behavior on the online auction site eBay shows what to avoid if you want to get a bargain: lots that are illustrated, lots from regular sellers, weekend bidding and long auctions.

The research, conducted on the California-based site eBay, showed that if you buy an item that is illustrated with a photograph, it could set you back by an extra 11 per cent, compared to a similar item without a picture. And merchandise sold during the weekend costs about two per cent more.

The study was conducted by Charles Wood of the Mendoza School of Business at the University of Notre Dame in Indiana and his colleagues at the University of Minnesota. They looked at the sale of coins on eBay from 1999 to 2001.
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Sweating appears to be an essential part of the body?s defense against bacteria. Birgit Schittek and her team at the University of T

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The aurora borealis is appearing across the country, as far south as California and Georgia. If you look up in the sky, you?re likely to see a shimmering display of red and green lights. The colorful streaks, also known as the Northern Lights, are rarely seen south of Canada and Alaska.

They could be seen on Monday night beginning around 8:50 p.m. EST, as broad blue and green spiked bands, tinged with brilliant red areas. The sky was ?almost like a fluorescent red,? according to Rick Anderson in West Virginia. ?What was really awesome was I looked through my back yard, where I could see the horizon, and it looked like rays coming from the ground up into the sky,? he says.
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With all the news coming out about terrorist attacks, we tend to forget about our old nemesis, the ozone hole. How big is it this year, anyway?

Each year around August the ozone hole begins to open as light from the springtime Sun over the Antarctic triggers the chemistry of ozone destruction. It contracts again in December.
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