>> and think
>> nothing of standing in front of their microwave ovens 
>> while it's pumping
>> 1kW of RF into your food.

> But worried about the magnetic field from their electric 
> blanket.

I'm far more worried about the field from an electric 
blanket. As I don't own one the worry level is not large. 
With a microwave oven I know where the fields is, about how 
strong it is and how to limit its coupling to my person. 
(No. the door doesn't 'leak' RF appreciably.

With the blanket I know two of the above things. Limiting 
its coupling can only be done by not having it live when in 
bed. An easy option. The coupling when  working is 
substantial even at 50 Hz. Whether this matters is unknown. 
There are many peer reviewed papers on both sides of the EM 
fields argument.

Interesting experiment.

- Have somebody lie in a bed with an electric blanket 
operating.
- Stand by the bed.
- Softly run the back of your hand over the back of their 
hand.
- Also try light touch of fingertips on skin.

The substantial  capacitive coupling will cause a rough 
grating fiel  with rubbing - essentially a small "shock". 
Which may or may not have any importance.


        Russell


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