[Avodah] electricity on shabbat

[Eli Turkel]

<<Agian, this presumes that it's not close enough to inevitable to be
pesiq reishei. That has to be established>>

To be a psik reisha sparking would have to occur every time
one used the appliance not just over the long run. I severely
doubt that most appliance are constantly sparking.
Also as the article points out modern electrical appliances are
arcless.

This issue came up again with using (special shabbat)elevators on shabbat.
RSZA said it was not a problem because it is unintentional,
too small to be seen or have heat as is not psik reisha.
The physical facts were supplied by Rabbi Rozen of the tzomet institute.
Those that argue with R Rozen argue about the issue of the weight of
the person affecting the speed of the elevator. As far as I know no one
argues that sparking is an issue

-- 
Eli Turkel