Communications waste

  US researchers are hoping to eventually use smart dust technology to track household rubbish and e-waste. At the moment the smallest tracking device is a tag, about the size of a business card. These electronic tags are being developed by the Massachusetts Institute of Technology (MIT) SENSEable City lab.…
Here's an interesting piece of noise trivia from the sensible and well organized lap of Mother Nature. According to the American Tinnitus Association (ATA) a person's hearing will be damaged when exposed to sounds of over 85 decibels (dB) for more than eight hours. The noise of a screaming child…
Once sound is created within about one second it loses over 99 percent of it's intensity. It is scattered and absorbed and what's left is turned into heat. So do the sounds we make contribute to global warming? No the heat caused is infinitesimal.