True, too, Arab governments should not let their frustration about the peace process colour their attitude towards Mr Hussein, whose potential for mischief still threatens them as much as, maybe more than, anyone.

ECONOMIST: America the unmighty

The brain's interpretation of colour is actually a three-step process.

ECONOMIST: The biology of art

Looking at the ease with which we now capture colour pictures and transmit them around the world in seconds it's easy to forget that it was not that long ago news agencies were transmitting their wire photographs as colour separations, usually cyan, magenta and yellow - a process that relied on Clerk Maxwell's discovery.

BBC: Pioneering colour photography