BBC News reported today in its article, “Tiny Ear Listens to Hidden Worlds“, that scientists from the UK have developed a microphone based on the techniques used in optical tweezers – suspending very small glass or plastic beads in laser light and measuring their movement.
“We are now using the sensitivity afforded by the optical tweezer as a very sensitive microphone,” said Professor Jon Cooper from the University of Glasgow, who is heading the micro-ear project.
“The optical tweezer can measure or manipulate at piconewton forces,” said Professor Cooper. A piconewton is a millionth of the force that a grain of salt exerts when resting on a tabletop.
The site includes sound samples and a visual representation of the capturing of the sound of bacterial flagella movement.






Annotated List of Interactive Audio Net Art
Jim Andrews has produced an annotated list of Interactive Audio websites as well as some collections of writing and videos on the subject. The rest of his site vispo.com is filled with fascinations of net art, links, and essays.