High Levels of RF electromagnetic radiation (EMR) exposure will cause significant heating and damage to human tissue. The US military developed a non-lethal weapon using a beam of electromagnetic radiation (EMR) for crowd control, videos are on youtube.
In Australia the ACMA's regulatory arrangements for wireless devices make mandatory the exposure limits set by ARPANSA RF Standard, which are designed to protect people against all known adverse health effects.
There are certain disadvantages of this zigbee network like it can be confusing initially for the home owners, replacement with zigbee complaint appliances can be costly and many more but definitely with every technology there are advantages and disadvantages associated .
It's all down to price for me in this arena. As a former X10 user, I'd love to update to newer home automation technology, but there simply is no way that I'm paying $40+ dollars for each node as the devices are currently priced. I'm not even willing to pay $20 for each node. The price has to come down before there will be widespread adoption.
A middle school team from Rochester, Mich., has again nabbed the grand prize in the annual international Future City Competition, which drew students from 37 regions of the United States, as well as from England and China.
The word “smart” is becoming the dumbest word around. It has been applied to almost every device and system in our homes. In addition to smartphones and smart meters, we now hear about smart clothing and smart shoes, smart lights, smart homes, smart buildings, and every trendy city today has its smart city project. Just because it has a computer inside and is connected to the Web, does not mean it is smart.
Are you being paid enough? Do you want a better job? According to a recent survey Manpower released just before Engineers Week, employers and engineers don't see eye-to-eye about the state of US engineers' skills and experience.
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.