Images Dated 6th November 1998

Artwork of a hand holding an ultrasound transducer

Ultrasound transducer. Computer artwork of a hand holding an ultrasound transducer. The transducer can be used as a diagnostic tool for foetal scanning, diagnosing organ diseases and detecting blood flow rates. The wave pattern coming from the transducer (at lower centre) represents sound waves of very high frequency (ultrasonic waves). When used as diagnostic tool, the transducer is placed onto the patient's skin. A small piezoelectric device in the scanner head generates an ultrasound signal. The ultrasound is reflected by different amounts by different tissues. The reflected signals are picked up by the scanner head and processed to create the ultrasound image

© DAVID GIFFORD/SCIENCE PHOTO LIBRARY

Britain's Prince Charles arrives in Bulgaria and inspects the Guard of Honour with

Britain's Prince Charles arrives in Bulgaria and inspects the Guard of Honour with the Bulgarian President Petar Stoyanov in November 1998. The Prince of Wales arrived in Bulgaria on a three-day visit as a part of his Eastern European tour

© Mirrorpix

1990s, Ceremonial Attire, Guard, Prince Charles, Prince Of Wales, Rain, Royal Tours, Royalty, Umbrella, Uniforms