Dance club Lighting

83 says:

Scientist believe they can develop a cell phone that does not require charging but rather converts sound waves to energy used by the phone. Scientist in the field of nano technology want to replace the basic use of batteries in technology and are finding many was how. Battery life remains a major concern for popular mp3 players and cell phones that are required to perform an ever-expanding array of functions. But beyond mere consumer convenience, self-powering devices are of major interest to several federal agencies. Even the disturbances in the form of sound waves such as pressure waves in gases, liquids and solids may be harvested for powering nano- and micro devices of the future if these materials are processed and manufactured appropriately for this purpose. This article interested me very much since we are currently on the topic of sound waves. Also its interesting how even waves could be converted into energy? In the article it had also explained how a dance club in Europe harnessed the stampings of the feet to power their lights and a dojo in Hong Kong used the energy taken from exercises to power their lights and sound as well. To think that we had gone from large long telephone wires to now this is astounding to say the least.Does the conversion of sound waves to energy seem realistic too you?