April 30th 18, 04:58 PM
posted to alt.comp.hardware.pc-homebuilt,alt.comp.os.windows-10,alt.windows7.general,alt.comp.hardware.pc-homebuilt
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Wireless charging mouse pad
Wolf K wrote:
On 2018-04-30 10:06, G Ross wrote:
Mr. Man-wai Chang wrote:
Would your hand get cancer in the long run? Wireless charging means
there is energized EM radiation coming out of the pad! 
How about a wireless mouse itself? Does it not send some type of
radiation to the pickup thingy?
Indeed it does. Electromagnetic (EM) radiation at a frequency of 2.4GHz.
Most of the EM spectrum is harmless. X-rays and cosmic rays are the most
dangerous. Light is of course necessary for us, but at high intensities
it can damage the retina. Infra-red light is perceived as heat: it's
what makes fire feel warm, and it's absorbed by your clothes and skin,
so it warms you. As lasers, infra-red light can be used to burn stuff
(which makes it good for welding low-melting point materials).
Radiation is everywhere. You are radioactive: C14 and K40 atoms inside
you decay by beta radiation, which damages surrounding molecules. Isaac
Asimov calculated that this would put an upper limit of about 20,000
years for suspended animation (useful for starship travel, if we ever
get it).
Have a good day,
There's a chart here.
https://en.wikipedia.org/wiki/Non-ionizing_radiation
Paul
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