Images Dated 4th September 2003

BIO11239

Jokulsa a Fjollum river outflow from the glacier Vatnajokull Glacier, Europe's largest by volume. It is Iceland's second-longest river, 206 km, Iceland

© BIOSPHOTO/AUSCAPE All rights reserved

And Xe1, Europes Largest By Volume, Fj, It Is Icelands Second Longest River, Jokulsa A Fjollum River Outflow From The Glacier Vatnajokul, Kull Glacier, Kuls, Llum River Outflow From The Glacier Vatnaj

Grid computer farm

Grid supercomputers. Fish-eye lens view of a room packed with supercomputers, forming a "PC farm" with immense processing power. These computers are at CERN, the European Particle Physics laboratory near Geneva, Switzerland. They are being prepared to accept and analyse data from the new Large Hadron Collider (LHC). The LHC will smash particles together in an effort to find their constituents, and will generate millions of gigabytes of data. This is also being used as a test run for The Grid, a network of computers that can share processing power. This means that a standard desktop computer connected to The Grid can be used to perform powerful calculations

© DAVID PARKER/SCIENCE PHOTO LIBRARY

Ivy stem, SEM

Ivy stem. Coloured scanning electron micrograph (SEM) of the surface of an ivy plant stem. The star- shaped trichomes, a type of modified hair cell, may function in preventing water loss, or in defending the plant against insects. Several stomata are visible, for example in a line from lower left to centre. These pores allow for gaseous exchange between the air and the plant's cells. There are fewer stomata on plant stems than on the leaves

© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY