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To: FLSTF97 who wrote (12494)	12/9/1999 4:31:00 PM
From: John Walliker	Respond to of 54805

Fatboy, I would argue that when it comes to initiating chemical reactions or breaking bonds, peak power may be more of a determinant By definition, radiation that can break bonds is ionising. Examples include x-rays, ultra-violet from sunlight, high energy sub-atomic particles. In the case of cellular phone emissions, the energy of the radiation is millions of times lower than that which could break bonds. The power is simply the rate at which that low energy radiation is emitted. A high power means that you warm up more quickly. A high peak power with gaps in between could, however, induce low frequency currents in neural tissue which might possibly have some effect. Sometimes this is done deliberately. Magnetic nerve stimulators discharge a large high-voltage capacitor rapidly through a coil placed over the skin and the induced currents can painlessly stimulate nerves - even parts of the brain. However, it is very difficult to generate pulses big enough to have any detectable effect. See www.magstim.co.uk for more details. (I developed the prototype of their Neurosign 100.) John