[Avodah] intuition in halacha

[Eli Turkel]

<<My guess is that electricity in general is still in flux. >>

as a scientist I assume that was a pun (electrical flux is important
concept)

<<Most Halachic principles are pretty much fixed. What is new must be
  analyzed and the usual method -  is by analogy. If an incandescent
  light behaves more or less like a kerosene lamp - then by analogy it gets
  the same Halahchic properties. What happens on the molecular level is not
  quite so relevant.>>

the problem is in turning on an electric fan on shabbat. There is no obvious
"work'
that is being done - intuition and analogy don't help. Everything is on the
molecular/atomic
level.

<<. I am also convinced that electric convection oven is 100% bishul
  both for issur Shabbos and eqaully kosher for "broiling" liver. Would any
serious poesik
think that the issur of bishul basar echalav via electricity is not a true
d'orraisso?>>

microwave heating is much less intuitive

  <<Given: CI posits that closing a circuit is bone;  So, Is it so that
  putting a magnet back on the Refrgerator door also bone?  Is taking a
magnet
  off Stirah?>>
RSZA has a bunch of such questions using the analogy of water in pipes in
the house.
Is opening the faucet boneh?
I personal observation is that almost no one really holds like CI but accept
it as lechatchila.

My remark was that after the original disagreement between RSZA and CI there
has been little
discussion among poskim about more modern versions of technology eg LED,
wireless, etc.
part of the problem is that most poskin dont understand the technology.
There is some
work by R. Halperin and R. Rosen from the technological institutes.

-- 
Eli Turkel
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