Share to: /   The Chinese make light Work of Payment: The Invention of Paper Money   / Around 650 AD, the emperor of China began to issue paper value tokens for general use.
Answer: No. Mobile phones do not give off sub-atomic (ionizing)  radiation.    Answer: Yes. Mobile phones emit microwave (millimeter to  centimeter range) electro-mag â¦ netic radiation, mostly at frequencies  from 800 to 1800 MHz (1.8 GHz).This is below infrared.nswer: No. Mobile phones do not give off sub-atomic (ionizing)  radiation.    Answer: Yes. Mobile phones emit microwave (millimeter to  centimeter range) electro-mag â¦ netic radiation, mostly at frequencies  from 800 to 1800 MHz (1.8 GHz). This is below infrared.
Vodafone customers can get a similar device, Sure Signal, but they'll have to stump Â£100 for the privilege. Still, that's better than anyone struggling with O2, EE, Orange or T-mobile as at the moment their Signal Boost is only available to business customers, and even they have to pay.O2 do offer an alternative, however, in the form of Tu O2, a piece of software, rather than hardware.emma Crutchlow-Porter, 14 July 2014. Â©iStock.com/leopardhead. BAD mobile signal at home can be incredibly frustrating. But there is an alternative to climbing on to the kitchen table with your arm hanging out of the window just to send a text: hooking up a home signal booster, or femtocell.