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There is a daily 8-minute shiur given by Rabbi Eli Stefansky. It is broadcast live on Youtube, and accessible on his channel.


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Rambam, Hilchos Kiddush Hachodesh 17:24 (after spending several chapters on the details of astronomical calculations): וטעם כל אלו החשבונות ומפני מה מוסיפים מנין זה ומפני מה גורעין. והיאך נודע כל דבר ודבר מאלו הדברים. והראיה על כל דבר ודבר. היא חכמת התקופות והגימטריות שחברו בה חכמי יון ספרים הרבה והם הנמצאים עכשיו ביד החכמים... שכל דבר שנתגלה טעמו ונודעה ...


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Bereishis Rabbah 14:2: בָּעוֹן קַמֵּיהּ דְּרַבִּי אַבָּהוּ, מִנַּיִן שֶׁהַנּוֹצָר לְשִׁבְעָה חַי, אֲמַר לְהוֹן מִדִּידְכוֹן אֲנָא מַמְטֵי לְכוֹן, זיט"א אפט"א, איט"א אוכט"א. [Some people] asked R’ Avahu: “From where do you know that a fetus born at seven months can live?” He said to them, “From your own [language] I will respond to you: zeta [the ...


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There is an effect for being an "istanis" during a fast, but not on fasting itself. During Tisha Be'ev fast, one may not wear leather shoes. Some Poskim forbid all comfortable shoes because they are like leather shoes, But Rabbi Shlomo Oiyrbach allows because nowadays we all "istanis" (הליכות שלמה ה, טז-יז).


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Megilat Aicha tells us: "If someone tells you, 'There is wisdom among the Goyiim, you can beleive that... " This is copied off the internet: In the Book of Lamentations, the prophet describes the situation of the people of Israel after the destruction of the Temple:" ... A queen and her ministers are among the nations, there is no Torah, Even its prophets ...


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Unfortunately, the versions of Gemara and commentators' texts which we have contain plenty of copying errors. Before there were printing presses, texts were copied by hand. Then then copy was copied by hand, then the copy of the copy, and so on. It is estimated that on average, 4-6 significant mistakes were made per page by each copier. This went on for ...


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Who's who in the Talmud by Shulamis Frieman is the book you are looking for . It's quite pricey ,but was done very well ,you probably can get it at a library. https://books.google.com/books?id=9PToGLIBt6UC&printsec=frontcover&dq=whos+who+in+the+talmud&hl=en&sa=X&ved=0ahUKEwjUkcmJw7jjAhWKTd8KHfKmCxwQ6AEIKDAA#v=onepage&q&f=false ...


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I have not done my own detailed analysis by compiling an exhaustive and definitive review of the various rabbis mentioned in the Talmud and their respective vocations although a good reference is the responsum of the rishon, R. Shimon b. Zemah (Tashbatz, Vol. 1 §147) who provides quite a lengthy list. Another useful sketch, not so exhaustive in content but ...


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I am not aware of an istus but there a closely related concept word: an istenis is indeed a delicate person. It appears in a number of different contexts in the Talmud, for instance someone who is disgusted by drinking from a cup where someone else drank (Tamid 27b) someone too delicate to work (Sotah 11a) someone too delicate to bathe in cold water (Yoma ...


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An example of this occurs in the Mishnah in Berachot 16b: רחץ לילה הראשון שמתה אשתו אמרו לו תלמידיו למדתנו רבינו שאבל אסור לרחוץ אמר להם איני כשאר בני אדם אסטניס אני [RABBAN GAMALIEL] BATHED ON THE FIRST NIGHT AFTER THE DEATH OF HIS WIFE. HIS DISCIPLES SAID TO HIM: YOU HAVE TAUGHT US, SIR, THAT A MOURNER IS FORBIDDEN TO BATHE. HE REPLIED TO THEM: I ...


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The gemara in Shabbos 85a tells us that Chazzal had a tradition going back to biblical times of knowledge they learned from various nations concerning plant growth, namely how far they need plant various species to avoid Kilaim. וקים להו לרבנן דחמשא בשיתא לא ינקי מהדדי And the Sages have an accepted tradition that five seeds in a six-handbreadth ...


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This is not a specific work, but an example of using secular knowledge for Torah: Sanhedrin 5b והאמר רב שמונה עשר חדשים גדלתי אצל רועה בהמה לידע איזה מום קבוע ואיזה מום עובר But did not Rab himself say: I spent eighteen months with a shepherd in order to learn which was a permanent and which a passing blemish?


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The Chumash describes how the Jews used secular poetry to determine which lands previously owned by Moav they were allowed to conquer. (I'm assuming that when you said Tanaim, Amoraim, Rishonim, Achronim, it was lav davka and you weren't intending to exclude earlier sources.)


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It's a Mishna in Oholos 7:6 that says: הָאִשָּׁה שֶׁהִיא מַקְשָׁה לֵילֵד, מְחַתְּכִין אֶת הַוָּלָד בְּמֵעֶיהָ וּמוֹצִיאִין אוֹתוֹ אֵבָרִים אֵבָרִים, מִפְּנֵי שֶׁחַיֶּיהָ קוֹדְמִין לְחַיָּיו. יָצָא רֻבּוֹ, אֵין נוֹגְעִין בּוֹ, שֶׁאֵין דּוֹחִין נֶפֶשׁ מִפְּנֵי נָפֶשׁ:‏ If a woman is having trouble giving birth, they cut up the child in her womb and ...


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I'm guessing you are looking for Bava Basra 16b איוב לט, א. חולל אילות תשמור אילה זו רחמה צר בשעה שכורעת ללדת אני מזמין לה דרקון שמכישה בבית הרחם ומתרפה ממולדה ואלמלי מקדים רגע אחד או מאחר רגע אחד מיד מתה בין רגע לרגע לא נתחלף לי בין איוב לאויב נתחלף לי Similarly: “Can you mark when the hinds do calve?” (Job 39:1). The womb of this hind is narrow, ...


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Kiddushin 39b: רמי רב טובי בר רב קיסנא לרבא תנן כל העושה מצוה אחת מטיבין לו עשה אין לא עשה לא ורמינהי ישב ולא עבר עבירה נותנים לו שכר כעושה מצוה אמר ליה התם כגון שבא דבר עבירה לידו וניצול הימנה Rav Tuvi bar Rav Kisna raises a contradiction to Rava and asked: We learned in the mishna that anyone who performs one mitzva has goodness bestowed upon ...


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Absence of proof is not proof of absence, but it is a strong indicator of absence The degree to which "לא ראינו" is an indication of absence depends on the size of the domain. If we are dealing with the whole planet as the domain, but our area of observation is only our local vicinity, then absence of proof is a very poor indicator for the whole domain. If ...


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Sotah 47b says: משרבו תלמידי שמאי והילל שלא שימשו כל צורכן רבו מחלוקת בישראל ונעשית תורה כשתי תורות When the students of Shamai and Hillel didn't serve their teachers properly, arguments arose and the Torah became like two Torahs Rambam explains introduction to Mishnayos 11: כאשר רפתה שקידת התלמידים על החכמה ונחלשה סברתם נגד סברת הלל ...


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While I have no source, I think the reason that the dissension multiplied is that the Sanhedrin lost its place in the Temple. The Romans conquered Eretz Yisrael in the time of Shemaiah and Avtalyon, so those two may well have been the last heads of the Sanhedrin to have sat in the Chamber of Hewn Stone. Hillel and Shammai learned from Shemaiah and ...


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Practical guide to the Brisker method in English? is similar; it mentions Rabbi Yitzchak Adler's sefer Lomdus


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קובץ יסודות וחקירות (Koveitz Yesodos and Chakiros) It’s a wonderful sefer that would seem to be exactly what you’re looking for Here’s a link to it on HebrewBooks, or can also opt to purchase a hard copy online.


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I think what you are looking for is http://books.613m.org. It's not active and I don't see any links to the source code - but it looks interesting.


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Here are some: Kovetz Shiurim (R. Elchanan Wasserman), Chiddushei R. Reuven (Grozovsky), Chiddushei R. Shlomo (Heiman), Shiurei R. Shmuel (Rozovsky), Shiurei R. Dovid (Povarsky), Shiurei Avi Ezri (R. Schach), Kehillos Yaakov (R. Y. Y. Kanievsky), Kuntresei Shiurim (R. Y. Z. Gustman), Reshimos Shiurim (R. Y. D. Soloveitchik), Shiurei R. Yechiel Michel (...


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I would suggest Shiurei HaRav (Soloveitcik) ,and Hararei Kedem. They both include the Brisker style analysis of chakirah. They aren't too lengthy and Hararei Kedem is very easy to follow.


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Rabbi Aaron Pessin has an entire sefer dedicated to all the "teiku"s that appear in Shas. The entire Sefer can be found online here. R' Pessin lists 317 times in Shas Bavli from Brachos 8a to Nidda 63a. There is a complete listing which is too large to copy here, but I can at least copy the breakdown by Mesechta.


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Is it the Yalkut Shimoni, Tehilim 25 (remez 702 'ז) Here?


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Yes. The statement is true. Although Albert Einstein was agnostic, he was a Zionist and supported the secular government of Israel. He was a scientist, physicist, and philosopher. So when you hear the famous quote, “science without religion is lame and religion without science is blind,” he was referring to religion as a metaphor for the universe. Not ...


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No, he did not. Almost 10 years ago I was sitting at a Chabad lunch when one of the custodians of the Albert Einstein Archive at Hebrew University gave a speech. Someone asked him if it was true Einstein died religious by saying shema' (another tale of his religiosity). He said that Einstein never said or did anything in [old age] that we [faithful Jews] ...


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A partial answer: The earliest source I know of which contains the emendation by Beruriah is R. Avraham Saba in his Zeror HaMor (end of Bihalotecha; pub. 1522-23). One can assume either he had a variant reading or he misquoted. R. Gedaliah ibn Yachya in his Shalshelet HaKabalah (p. 32a; pub. 1587) also quotes this emendation but the same assumptions are ...


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