<<My guess is that electricity in general is still in flux. >><br><br>as a scientist I assume that was a pun (electrical flux is important concept)<br><br><<Most Halachic principles are pretty much fixed. What is new must be
<br> analyzed and the usual method - is by analogy. If an incandescent<br> light behaves more or less like a kerosene lamp - then by analogy it gets<br> the same Halahchic properties. What happens on the molecular level is not
<br> quite so relevant.>><br><br>the problem is in turning on an electric fan on shabbat. There is no obvious "work'<br>that is being done - intuition and analogy don't help. Everything is on the molecular/atomic
<br>level.<br><br><<. I am also convinced that electric convection oven is 100% bishul<br> both for issur Shabbos and eqaully kosher for "broiling" liver. Would any serious poesik <br>think that the issur of bishul basar echalav via electricity is not a true d'orraisso?>>
<br><br>microwave heating is much less intuitive<br> <br> <<Given: CI posits that closing a circuit is bone; So, Is it so that<br> putting a magnet back on the Refrgerator door also bone? Is taking a magnet<br>
off Stirah?>><br>RSZA has a bunch of such questions using the analogy of water in pipes in the house.<br>Is opening the faucet boneh?<br>I personal observation is that almost no one really holds like CI but accept it as lechatchila.
<br><br>My remark was that after the original disagreement between RSZA and CI there has been little<br>discussion among poskim about more modern versions of technology eg LED, wireless, etc.<br>part of the problem is that most poskin dont understand the technology. There is some
<br>work by R. Halperin and R. Rosen from the technological institutes.<br clear="all"><br>-- <br>Eli Turkel