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Questions tagged [acharonim]

'Acharonim' refers to the sages that are from the time period from when the Shulchan Aruch was written to the present.

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Halachic opinions on tefillin peshutim

I was discussing the subject of tefillin with my father motzei-Shabbat and particular, the battim (leather boxes that contain the parshiyot, or parchment scrolls). We ended up wondering what the mid-...
Noach MiFrankfurt's user avatar
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How do the outer planets: Uranus, Neptune and Pluto fit into Judaism?

It is not a secret that we discover new things in all fields of science, not mentioned in our sources all the time. We know that in Judaism the 7 planets represent/aligned with 7 spiritual forces and ...
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Rule 195 of Ayelet Hashachar by the Malbim

If one looks at the Malbim's Ayelet Hashachar, he gives 613 rules for interpreting the Torah. But if you look at it carefully, you'll notice that rule 195 is missing. What happened to this rule?
Craig Feinstein's user avatar
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The opinion that microwaves don't need to be kashered

So I remember hearing this opinion that followed like this: "Microwaves do not need to be kashered because the means of cooking in a microwave are different than those spoken about in the Gemara." ...
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(how) does מיגו still work?

A מיגו is a logical argument used multiple times throughout the Rishonim and Achronim (for example, the Sha"Ch has a very long discussion about it here: https://www.sefaria.org.il/...
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Conversion by presumption

This document, in the section running over page 11 onto page 12, refers to Rav Feinstein's chiddush that it is possible to 'convert' to Judaism by chazakah alone, and without a formal beit din. The ...
Zarka's user avatar
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Sucking a citrus fruit: Kaf Hachayim

The Kaf Hachayim, OC 202:63: ומיהו המוצץ משקה מן הפרי חשוב אוכל ומברך ברכתו הראויה לו ושיעורו בכזית לברך ברכה אחרונה. פר״ח בספרו מים חיים סימן ז׳ חס״ל אות י״ד. והיינו דוקא במוצצם ע״י לעיסה שנותנם ...
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What are R' Yaakov miLissa's commentaries on the m'gilos called?

Many a Jewish book is known colloquially by its title, like Avne Nezer and More N'vuchim. Many a one is known colloquially by its author's name, like the commentaries of R' Moshe Alshich and Malbim on ...
msh210's user avatar
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Sefer Klal Tora Umitsvot from the Shaagat Arie

See in Shaagat Arie suman 6, he cited his book on principles of Tora and Mitsvot ומה שיש לדקדק על דברי הרמב״ם אלו כבר כתבתי באורך רב בספר כלל תורה ומצוות שלי I never heard of this book. Where can ...
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Mekor Chaim by the Chavauss Yo'ir

Where can I find a copy of the Mekor Chaim by R' Yair Bacharach זצ”ל (the Chavot Ya'ir)? I read on Wikipedia that Machon Yerushalayim publishes a copy, but a perusal of their catalogue does not turn ...
Noach MiFrankfurt's user avatar
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Teacher of the Pnei Yehoshua

What was the name of the rav/teacher of HoRav Ya'akov Yehoshua ben Tzvi, author of the Pnei Yehoshua?
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Source for Rabbi Jonathan Eybeschutz's explanation of Ta'anis Esther

The three day fast that Esther and Mordecai and the Jew's of Shushan observed during Nissan fell out on (at least) the first day of Passover. I remember hearing an explanation from Rabbi Jonathan ...
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Which famous Rabbi had lifelong stomach pain?

I recently heard a shiur that quoted a famous rabbi (I think an Acharon) who talked about having stomach pain every day of his life, and studying torah was the only thing that gave him any joy. Does ...
human347359's user avatar