Images Dated 21st June 2004

DOG - Czechoslovakian Wolfdog

LA-1798 DOG - Czechoslovakian Wolfdog History: In 1982 the Czechoslovakian Wolfdog was recognised as a breed. It resulted from the cross-breed match between a Geman Shepherd dog and a Carpathian wolf. The first successful hybrid pup was born in 1958. Later generation hybrids were used commonly as working service dogs in the army. Temperament: Capable of endurance and resistant to weather conditions. Fearless and courageous, docile with quick reactions. Show loyalty towards master. Jean Michel Labat Please note that prints are for personal display purposes only and may not be reproduced in any way

© Jean Michel Labat / ardea.com

Coloured SEM of the nib of a ballpoint pen

Nib of a ballpoint pen. Coloured scanning electron micrograph of the ball at the nib of a ballpoint pen. The ballpoint pen was invented in 1938 by Hungarian journalist Laszlo Biro. Production began in 1944 and it was quickly adopted by the British Royal Air Force to resolve the problems that pilots had in writing when flying at high altitudes. In 1953 Bich, a French baron, developed a process for producing ballpoint pens at a low cost. His design has been immensely successful with millions being made. Magnification: x14 at 5x7cm size. Magnification; x28 at 9cm x15.5cm size

© POWER AND SYRED/SCIENCE PHOTO LIBRARY

Pythagoras monument

Monument to Pythagoras. Monument to the Greek philosopher Pythagoras (about 580-496 B.C.) in the harbour of Pythagorio, Samos, Greece. The monument is of Pythagoras as part of a right- angle triangle. Pythagoras taught that the squared hypotenuse length of a right-angle triangle is equal to the sum of the squares of the other two sides. This is known as Pythagoras theorem and it is for this that he is best known. As well as being a philosopher and a mathematician, Pythagoras was also an astronomer. He taught that the Earth was spherical, and that the morning and evening stars were the planet Venus

© DETLEV VAN RAVENSWAAY/SCIENCE PHOTO LIBRARY