AN interesting booklet upon applications of the microphone principle has been written by Messrs. Jensen and Sieveking, of the physical laboratories in Hamburg and Karlsruhe. 1 By the term “microphone ...

Music plays a big part in many of our lives, but how does it work? Music plays a big part in many of our lives. Whether you just like to listen or you enjoy playing an instrument, music is powerful.

June 22, 2005 (Toronto) — The position of a patient's arms and whether they are standing or supine can make a big difference in terms of the visibility of sentinel nodes when undergoing ...

When a sound wave enters a fluid, an oscillation in pressure will propagate through the fluid — this pressure can vary in time and space. Both temporal and spatial domains are important for ...

Holographic vibration tests have been conducted to determine the vibration mode shapes of jet engine turbine and compressor blades and airframe panels. Tests were conducted using piezoelectric ...