Here's RIM's official explanation about the Blackberry Buzz I blogged about recently.
>>>Unfortunately, this "buzzing" is a characteristic that is unavoidable on any mobile phone that operates in the GSM 850/1900 MHz range (not just BlackBerry, but all other phones also).
Essentially, whenever the phone transmits or receives on the 850/1900 MHz band any nearby speakers are "excited" and there is an audible buzzing.
The only suggestion I have to reduce the annoying buzz, is to keep the BlackBerry handset away from any speakers (or any wires leading to speakers). So when you set it down on your desk, try putting it as far away from the speaker as needed (or you can turn off the speakers when they aren't needed).
This is a trait of the GSM design and not specific to BlackBerry.<<
Samsung's Galaxy line of smartphones used to fare quite well in the repairability department, but last year's flagship S5 model took a tumble, scoring a meh-inducing 5/10. Will the newly redesigned S6 lead us back into star-studded territory, or will we sink further into the depths of a repairability black hole?
In 2003, the world contained just over 500 million Internet-connected devices. By 2010, this figure had risen to 12.5 billion connected objects, almost six devices per individual with access to the Internet. Now, as we move into 2015, the number of connected 'things' is expected to reach 25 billion, ultimately edging toward 50 billion by the end of the decade.
NASA engineer Brian Trease studied abroad in Japan as a high school student and used to fold fast-food wrappers into cranes using origami techniques he learned in library books. Inspired by this, he began to imagine that origami could be applied to building spacecraft components, particularly solar panels that could one day send solar power from space to be used on earth.
Biomedical engineering is one of the fastest growing engineering fields; from medical devices and pharmaceuticals to more cutting-edge areas like tissue, genetic, and neural engineering, US biomedical engineers (BMEs) boast salaries nearly double the annual mean wage and have faster than average job growth.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.