Sound amplification by stimulated emission of radiation phenomenon, known as the Larsen effect, is the result of a positive feedback. In general, every oscillator consists of three main parts. These are the power source or pump, the amplifier and the positive feedback leading to the output. The corresponding parts in a SASER device are the excitation or pumping mechanism, the active (amplifying) medium, and the feedback leading to acoustic radiation. Pumping can be performed, for instance, with an alternating electric field or with some mechanical vibrations of resonators. The active medium should be a material in which sound amplification can be induced. An example of a feedback
Reflections of a Sound influenced by the "De Stijl" art movement. References to other artists such as Dalí, Da Vinci, Magritte, Mondrian and Warhol are also made. Post production by Corner Post (Sydney). Australian Digital release Australian Promo CD Reflections of a Sound "Reflections of a Sound" is a song by Australian rock band Silverchair and is the fourth track on their fifth studio album "Young Modern", released in March 2007. The song was released on 14 July 2007 as the second single from that album. The single was only released in Australia in digital format and as a CD Promo. The music video