[Avodah] electricity on Shabbat

[david guttmann]

RMB wrote: Nearly always is close enough. And I believe that a 110v wall
switch sparks in that range. 

What is the issur of a spark? Even hot metal, putting it out is only
Derabanan. A spark in itself is not fire without something to attach itself
to. A spark in the air I have difficulty seeing the issur. 

David Guttmann
 
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