On 14 Jan 2021 at 12:58:22 GMT, Daniel James  wrote:

> In article , The Natural Philosopher wrote:
>>>   Ah we have the solution - modulated X-Rays.
>>
>>  well you may well laugh...why stop there. Gamma rays?
>
> You do know that X-Rays and Gamma rays are essentially the same thing?
>
> They occupy much the same part of the EM spectrum. The distinction
> often made between them is to do with their means of production. Gamma
> rays are produced inside the atomic nucleus while X-Rays are created by
> relaxation of highly excited electrons outside the nucleus.
>
> https://en.wikipedia.org/wiki/X-ray#Gamma_rays

Both are ionising, so can cause radiation damage. Gamma rays are much more
energetic, however. Stuff like UV, visible light, and whatever 5G uses is not
ionising.

--
Tim

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