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Images Dated 26th August 2004

Choose from 105 pictures in our Images Dated 26th August 2004 collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for Quick Shipping.


Common crab Featured 26 Aug 2004 Print

Common crab

Common crab. Top view of the Common or Rock crab, (Cancer pagurus) also known as the Edible crab for its tasty meat. Coloured red-brown on top with a yellow-white underside, the claw tips on its powerful pincers are black. The Common crab is a relative of the swimming crabs but lacks flattened paddles on its hind limbs and consequently it is only a moderate swimmer. It prefers to eat mussels but also feeds on worms, other molluscs, algae and carrion. It lives mostly around the shore on stone and gravel bottoms, ranging from the coasts of Norway, Britain, France and Portugal, through to the Mediterranean

© Kevin Curtis/Science Photo Library

Nanniebots Featured 26 Aug 2004 Print

Nanniebots

Nanniebots, conceptual image. Nanniebots guarding the door to a chatroom on the internet. Nanniebots are part of a software program called ChatNannies, developed by Jim Wightman to protect children from paedophiles while they use chatrooms. Chatrooms are areas of the internet where people can talk to others from all over the world. No-one can see anyone-else using the rooms, so paedophiles, pretending to be children, use them to groom genuine child users. Wightman claims that the Nanniebots can strike up realistic conversations with users and detect whether or not a user is in fact a paedophile by looking for classic signs of grooming

© VICTOR HABBICK VISIONS/SCIENCE PHOTO LIBRARY

Hermann-Hering illusion Featured 26 Aug 2004 Print

Hermann-Hering illusion

Hermann grid illusion. The intersections of the white horizontal and vertical lines in this image appear to be grey. But when looked at directly they are clearly white. This is because of the role played by the edge of the retina. Our peripheral vision is designed to prioritise identifying shapes and edges. To this end the brightness of an image on the edge of the retina is diminished when it is not important to shape identification. At the intersections, a lot more of the area is white light compared to elsewhere on the lines, and there is an effect called lateral inhibition. The brightness is dimmed for this area, and we observe it as grey

© SCIENCE PHOTO LIBRARY