mgb_phys
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People generate about 100-150W and 2/3 of this is emitted as blackbody radiation.Pattonias said:If some reputable group was ever to "discover" that cell phones were causing brain cancer, wouldn't we end up with a rash of second hand brain damage law suites?
Roughly 3% of this is the 10cm - 30cm microwave band.
So the person next to you on the bus is emitting about the same average power as your cell phone's maximum power.
The more bare skin they have on view and the more energy they are using the more mm wave power.
So be especially careful of people running around on the beach.
People covered by low emissivity clothing at room temperature are less of a risk - so anyone not wearing a tinfoil hat should carry a warning label.