Images Dated 2nd February 2004

THE SHADOW OF ANDALUSIAN HORSEMAN BULLFIGHTER IS REFLECTED IN THE BULLRING NEXT TO BULLS DURING

THE SHADOW OF ANDALUSIAN HORSEMAN BULLFIGHTER IS REFLECTED IN THE BULLRING NEXT TO BULLS DURING REHEARSAL OF WORLD BULL FAIR SHOW IN SEVILLE. The shadow of Andalusian horseman bullfighter is reflected in the bullring next to bulls during the rehearsal of the World Bull Fair in Seville February 2, 2004. The show pays homage to the bulls used in traditional bullfights around Spain, and the fair will run from February 3 to 8, 2004. NO RIGHTS CLEARANCES OR PERMISSIONS ARE REQUIRED FOR THIS IMAGE REUTERS/Marcelo del Pozo - RP4DRIICMDAB

False-colour SEM of stylus in groove of LP record

False-colour scanning electron micrograph of a diamond stylus travelling through the grooves of a long-playing, stereo record. The grooves are cut into a flat disc of polyvinyl chloride. The groove varies with the intensity of the music: the straighter the groove the quieter the music, the wavier the groove (as here) the louder the music. The stylus picks up the music modulation from the sloping sides & transmits it to the cartridge, where a piezoelectric crystal or an electromagnet converts the vibration into an electrical signal. Although thoroughly cleaned, this needle is encrusted with dirt. Magnification: x30 at 35mm size, x50 at 6x4.5cm size. Purple & yellow stylus on red record. Reference: MICROCOSMOS, figure 9.16, page 182

© DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY