From Nicholas Wilson
Your article about magnetic fields and miscarriages was interesting
(12 January, p 4),
but did the women studied wear their monitors in the shower? This
is an important consideration if the shower is electric, because a 10-kilowatt
shower unit will have a current passing through it of over 40 amps.
Given the confines of a shower cubicle and the inverse square law, the
potential biological effects from an electric shower could be far more
significant than the localised fields produced by a 1-kilowatt vacuum cleaner at
an average distance of 2 metres during use, or the fields from any (distant)
overhead power lines.
Bury St Edmunds, Suffolk
