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21 votes
Accepted

Does the Holy Ark weigh 4 tons?

I go through the math here. Admittedly I use a lot of very rough estimation. I caught some mistakes in my math in the video which I have edited here, as well as adding a section below regarding the ...
DonielF's user avatar
  • 34.3k
10 votes

Is the shiur called a "k'beiah" or a "k'beitzah"?

Yam Shel Shlomo in chapter 4 of Bava Kamma says to pronounce it beya as the other word is not nice. This is subsequently brought in the Magen Avraham in siman 156 which is probably where it picked up ...
user6591's user avatar
  • 33.8k
7 votes

The minimum amount of water a Sotah must drink

With regards to your first question, there is an opinion quoted in Sefer Habatim (Mitzvah 224) that holds that poison was actually added to the water and the miracle was not regarding the guilty sotah,...
sam's user avatar
  • 42.1k
7 votes
Accepted

Minimum measure for שריטה/גדידה

There's a rather enigmatic Tosefta that seems to require that it be visible: וכמה ישרוט ויהא חייב כדי שיראה משם שריטה But the Ritva directly states there's no minimum: ומדלא יהיב תלמודא שיעורא ...
shmosel's user avatar
  • 3,917
6 votes

Place the Menorah above 10 tefachim?

The Shevet Hakehasi 5:115:4 brings that the Chida (Machzik Bracha) was bothered by this postion of the Seder Hayom. The Shevet Hakehasi explains that this postion of the Seder Hayom can be reconciled ...
sam's user avatar
  • 42.1k
6 votes

What to do with kiddush cups that are too small?

Because it was intended for a mitzvah I'd rather use it for a mitzvah if there is such an option. I've never heard of such a thing, as far as I recall. I've heard that it's nice to reuse something ...
msh210's user avatar
  • 73.4k
6 votes

3 Pesukim minimum per Aliyah

The Talmud states that this is to correspond to the three-fold division of Torah, Neviim, and Ketuvim: Megillah 24a הני ג' פסוקין כנגד מי אמר רב אסי כנגד תורה נביאים וכתובים What do these three ...
Alex's user avatar
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6 votes
Accepted

How large was the menorah?

The Talmud says on Menachot 28b: אמר שמואל משמיה דסבא גובהה של מנורה שמנה עשר טפחים הרגלים והפרח ג' טפחים וטפחיים חלק וטפח שבו גביע וכפתור ופרח וטפחיים חלק וטפח כפתור ושני קנים יוצאין ממנו אחד אילך ...
Isaac Moses's user avatar
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6 votes
Accepted

Is there a minimum field size for peah to apply?

This is the subject of a debate in Peah 3:6. The halachah follows R. Akiva’s opinion that there is no minimum size (Rambam Hilchot Matnot Aniyim 2:3).
Joel K's user avatar
  • 43.8k
6 votes
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Shiur for when shaatnez prohibits an item

The Rambam (MT Kilayim 10:5) answers your question There is no minimum measure for kilayim. Even the smallest thread of wool in a large linen garment or a thread of linen in a woolen garment is ...
mbloch's user avatar
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5 votes
Accepted

How much water could the tub Shlomo made hold?

In Eruvin 14b, the gemara asks this, and determines that the 2000 is a wet measurement and 3000 is dry, since dry goods can be heaped above the rim. לא סלקא דעתך דכתיב (מלכים א ז, כו) אלפים בת יכיל ...
Scimonster's user avatar
  • 23.2k
4 votes

No mitzvah to wear tefillin every day?

Pri Megadim (Eshel Avraham 37:2) discusses whether the obligation is constant or daily. Rabbeinu Yonah (Iggeres Teshuva Ois 24) writes that one who doesn’t wear tefillin has close to 300 עונשים ...
chortkov2's user avatar
  • 9,547
4 votes
Accepted

Difference Between Brit and Medical Circumcision

Besides the fact that a mohel is performing the bris in order to bring the baby into the covenant, and must handle it as a religious ritual, there are also differences in the medical procedure. The ...
sabbahillel's user avatar
  • 43.2k
4 votes

Is there a minimum amount of urine that is considered "Going to the bathroom" for the purpose of making a blessing?

There is no minimum amount below which it is not considered "going to the bathroom" for the sake of making a blessing. The Shulchan Arukh addresses this question explicitly: אֵין שִׁעוּר ...
Daniel's user avatar
  • 24.9k
4 votes

Halachic measures

This question was posed to R. Sherira Gaon and he answered that the Sages gave the measurements in terms of fruits and the like because those are constantly around and we can't argue that they have ...
Alex's user avatar
  • 49.6k
4 votes
Accepted

Why are there different versions of what Chazon Ish says is the size of an Amah?

In the Steipler's Shiurin shel Torah he writes the Chazon Ish's opinion about the amount needed for each Mitzvah. When it is a Mitzva D'Oraisa like Sukkah, he uses 10cm as a Tefach - 60cm as an amah , ...
פרי זהב's user avatar
4 votes
Accepted

What precisely are the differences between היתר מצטרף לאיסור and טעם כעיקר?

Rashi in Pesachim defines the two concepts, and stresses the differences between them: Rashi on Pesachim 43b: אכל חצי זית חלב וחצי זית בשר בבת אחת אין היתר משלים את שיעור האיסור לחייבו חוץ מאיסורי ...
Joel K's user avatar
  • 43.8k
3 votes

Taking three steps with limited space

I heard that Rav Chaim Kanievsky holds that one should take the steps sideways or on a diagonal. I personally saw the Chazan in his shul take three steps back on a diagonal that was nearly sideways.
LN6595's user avatar
  • 5,370
3 votes

What is Omer and how much is it?

My husband and I did extensive research on the hin, omer, and ephah, and correlated all the constraints on the omer from the Bible texts, including recipes for the daily grain offerings, recipes for ...
Shelley Houser's user avatar
3 votes

How much Matzo must one eat on Pesach?

What is the source for the number "26 cubic centimeters?" As Ikar Tosafot Yom Tov on the Mishnah in Peah.8.5 says (as per the Rambam): קב. אודיעך בכאן שיעור כל מדה מהם ושמור אותה תמיד בכל המשנה. ...
Danny Schoemann's user avatar
3 votes

How obligated is one to say Kaddish for a deceased relative?

It might be noted that Kaddish is considered to be a benefit for the neshamah of the niftar (soul of the departed) and is considered to be part of Kivud Av v'Em (under those circumstances where it ...
DrM's user avatar
  • 398
3 votes

Beis Shammai's dinar for kiddushin - philosophy?

The gemara in Kiddushin 11b and 12a provides 2 additional reasons. Reish Lakish says that we learn it from Chizkiyah, who holds the minimum sale price of an amah Ivriyah is a dinar, (because one must ...
Asher's user avatar
  • 410
3 votes

how much is required to make something tamei?

There is no general rule. Some things need a minimum of a lentil's worth, some a barley's worth, some an olive's worth, etc. You just need to check each case. For example, check out Mishna Ahilot ...
Double AA's user avatar
  • 99.5k
3 votes

Halachic measures

You ask about "k'zayit, k'betzah, revi'it, k'dei achilat pras, amah, etc", i.e. lengths and volumes. The Wikipedia article on which you base your premise "precise units were readily available in Greek ...
msh210's user avatar
  • 73.4k
3 votes
Accepted

Measuring Levi's cities

The reason you didn't see the cities' sizes being determined is that the cities were existing cities allocated by lottery to the different sons of Levi according to the size of the tribe giving them ...
mbloch's user avatar
  • 52.9k
3 votes

Shouldn't the minimum Succah size be 6x7 Tfachim?

Sha'ar HaTziyun 634:1 presents three answers: Ma'amar Mordechai - he and his table need to be able to fit in the sukkah in any orientation. Magen Avraham in the name of Rashi - they would eat lying ...
Joel K's user avatar
  • 43.8k
3 votes

How would you practically measure the volume of a matzah?

Not a problem! Rav Moshe Heinemann shlit"a is said to have laminated one, then measured its displacement in water.
MichoelR's user avatar
  • 3,556
3 votes
Accepted

Minimum amount for beracha achorona

SA 210:1 האוכל פחות מכזית בין מפת בין משאר אוכלים והשותה פחות מרביעית בין מיין בין משאר משקים מברך תחלה ברכה הראויה לאותו המין ולאחריו אינו מברך כלל ויש מסתפקים לומ' שעל דבר שהוא כברייתו כגון גרגיר ...
Chatzkel's user avatar
  • 13.1k
2 votes

What is the absolute minimum length for peyos?

I like the question, and note that it says "the minimum length of the hairs in the peyos area." (A different and important question would be what is included in "the peyos area".) ...
Yaabim's user avatar
  • 351
2 votes

What is the absolute minimum length for peyos?

All information got from: https://shulchanaruchharav.com/halacha/haircuts-peiyos/ Cutting the peiyos with a razor is forbidden (Tur in name of Rambam Avodas Kochavim 12:6; Ritva Shavuos 3a). Even ...
Krasen Radulov's user avatar

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