Reply to post:

I got given tickets to some Ideal Home Show type show years ago. Whilst there I found a more senior colleague from another department having a drink. He wasn't staying long but had to go back to a particular stand before he left. The stand he tells me has a device for limiting the amount of radiation that he was exposed to. He used his phone a lot and was worried about the energy it was exposing him to. I was curious to know what this was and walked over with him. I was expecting to see a cover closely fitting his phone made of a metallic substance. What I actually saw was a sticker that wasn't much larger than a current 5p piece and about as thick. I doubt that it cost much more than that to make either, they were selling them for a 'very reasonable' £5 each. Special show offer was £10 for three - utter bargain you understand.

So I asked how it works and I was told it absorbs some of the radiation the phone produces. Doesn't that affect the ability to use the phone? Would that not reduce the signal reaching the mobile phone mast? It's not that radiation that it reduces is the reply - "it's technical you understand" So as a joke I said is it the visible radiation that is reduced? “Yes that's it exactly, you're smarter than you look." I tried educating my colleague that his top of the range Nokia wouldn't be affected by this sticker. I said these things were a rip off using a headset would work better and visible radiation was just light. I was told to stop with the negative energy and he then went and bought £40 worth. Offered me one before leaving which I declined saying that it wasn't compatible with my model. I would like £5 if he was offering though.