It showed a conventional picture of a sphere with lines of latitude and longitude, slowly rotating.

"The conventional picture might be wrong by orders of magnitude," John said.

The images in this exhibition, however, are more like conventional pictures in appearance, having been printed on either Polaroid material or silk fabric.

It needed only a few palm trees and sand to complete the conventional picture of a desert island.

If you are wedded to the conventional picture of space-time with just one time axis, then of course you find it hard to understand.

James Yang won a patent for a drivers license with conventional picture, address and identifying information, like height and weight.

Overall the exhibition is a startling and disturbing inversion of the conventional picture of what the Thatcher years were about.

Like his father, an art teacher, Rorschach engaged in painting and drawing conventional pictures.

The difference was that the conventional picture required a camera to be up there, on the scene of the event; the J-scope didn't.

Books for the system, which will cost around £8 each, have conventional pictures and text alongside printed bar codes.