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I’m an engineer, graduated with a B.E. in Electrical Engineering from the Cooper Union, and working in that field in the Greater NYC area.

My interests are varied and include computers & computer programming, science fiction & real-life space exploration, politics, and religion; see my active accounts on Stack Overflow.

Read my (very sporadically-updated) blog, or follow me on Google+.


Apr
13
comment Record of Disputation of Paris
@mevaqesh, corrected after a search of HebrewBooks.
Apr
13
comment Record of Disputation of Paris
You're right: the Paris disputation was with R' Yechiel of Paris. More research needed.
Apr
2
comment Why no “Musaf” for Korban Pesach?
@DoubleAA: This would be a chabura that just happened to include everybody, right?
Mar
31
comment May a nutrition scientist perform research on chametz as part of his job on Hol Hamo'ed Pesach?
For a similar discussion regarding a different איסור הנאה, see my Nullifying Ancient Israelite Idols.
Mar
27
comment How did the Cohanim manage to walk on the Copper Mizbeach?
Thank you, @DannySchoemann, for that reference.
Mar
24
comment How did the Cohanim manage to walk on the Copper Mizbeach?
Was the copper on top as well, or only around the wooden retaining wall? IIRC the mizbeach was filled with earth at each stop.
Mar
5
comment May Sauron’s Ring be used for kiddushin?
+1. I did cover כל העומד לשרוף כשרוף דמי in my answer, but forgot the precise phrase; thank you.
Mar
5
comment May Sauron’s Ring be used for kiddushin?
@Daniel: en.wikipedia.org/wiki/Weregild
Mar
5
comment May Sauron’s Ring be used for kiddushin?
He took it as weregild; you have to discuss whether grabbing something in payment of debt counts as theft.
Mar
5
comment Are all אוזני המן halachically equal?
Chocolate hamantashen are an abomination unto Nuggan. Poppy is ideal of course; lekvár quite acceptable; and apricot & raspberry only b’sha‘as had’chak.
Mar
3
comment Angels in Bohemia?
I was thinking of voting for this answer, maybe accepting it, but nothing really matters…
Mar
2
comment How should a werewolf celebrate Pesach?
Related: judaism.stackexchange.com/q/55611/70
Mar
1
comment Does one make a Bracha when seeing the Pope?
Sure, @TRiG; halachikly he's a melech whatever the title is—which is why (as I said) the Reichsfürsten would have the bracha made for them.
Mar
1
comment Does one make a Bracha when seeing the Pope?
@ClintEastwood, the Pope is the monarch of Vatican city, but as Prince not King. IIRC though, the beracha on seeing a king was recited for reigning German Princes pre-unification.
Mar
1
comment Was it lawful for David to partake of the showbread?
@Mr.Bultitude, yes it would mean that.
Mar
1
comment What's the earliest “acknowledgement” of Heliocentrism in Judaism?
Still unclear, @Sparkler; nothing about the heliocentric model would affect the calendar at all. At most the more precise measurements of the year & month could theoretically lead to minute adjustments of the Jewish calendar. See The Rectified Hebrew Calendar for an example of such an attempt.
Mar
1
comment What's the earliest “acknowledgement” of Heliocentrism in Judaism?
Category error: I don’t see the phrase in the Wikipedia article you link to, and I would edit it out if I did: Judaism cannot officially recognize heliocentrism or geocentrism any more than it can officially recognize the color of your eyes.
Feb
26
comment What is the text of kiddush for Purim night?
Formatting help would be appreciated.
Feb
19
comment Why does a Hamentash have three sides?
This halacha is necessary to be taught, otherwise only the first bite would be considered to fulfill the mitzva. And while the ideal case might be that everyone should have his own hamentash, once we know that a hamentash with a bite taken out of it is still kosher, we can infer that a hamentash can be shared between multiple people and each of them will be yotze.
Nov
19
comment Is Bas Kol the heavenly voice always correct and how to identify Bas Kol from evil whispering?
IIRC, there is no Jewish source for the satan having any power to cause misleading prophecy. (The spirit of Navos was allowed to mislead Achav’s prophets, but that was a special case, and not the satan.)