measurements relating to the performance of different Mitzvot

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2answers
178 views

How to measure Menorah height

A menorah should preferably be within 10 tefachim from the ground (though higher than 3 tefachim). Are these ten tefachim measured to the base of the menorah, or to its top, or to the actual level of ...
3
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2answers
138 views

Shalom alecha rebbi (u'mori)

What is the significance of the time it takes to say Shalom Alecha Rebbi (U'mori)?
2
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2answers
132 views

Measurements for the Bais HaMikdash — can we do it with a computer?

Since everything is computerized now, when the Bais HaMikdash is rebuilt, will we use the computer to rebuild? I.E., the measurements for the offerings, the entire rebuilding, etc.?
2
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1answer
28 views

How much invalid material invalidates schach?

How much invalid material invalidates schach? (tefachim + inches preferred, but not required) Would it make a difference if this material was in the middle of the roof, or on the side (=next to the ...
2
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1answer
82 views

L'Hafrish Challah with Dough Made by Multiple Women?

I am wondering if small portions of dough, made by separate women in a challah baking class (thus each small portion would be owned by a single woman), can be combined to create the requisite amount ...
1
vote
1answer
72 views

What is Omer and how much is it?

My understanding is that Omer is a handfuls, which is about 1 US Cup or 236g. This is exact amount needed to produce bread for one day for one healthy adult. What do traditional sources say an Omer ...
1
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1answer
155 views

Regarding chametz, what is considered “not fit to be eaten by a dog”?

Regarding whether something needs to be considered chametz or not, there is a general rule of ראוי לאכילת כלב - i.e. - if a dog wouldn't eat it, then it's not considered food and therefore it is not ...
1
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0answers
69 views

Has there been a discussion of changing the maximum height in halacha?

In halacha certain things are considered invalid because the exceed the maximum height which people will notice, 20 amos (menorah, sukkah, korah). In modern times many (most?) people live in areas ...
1
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1answer
68 views

How much produce becomes bikkurim (first fruits)?

How much produce becomes bikkurim (first fruits)? Rambam says: Hilchos Bikkurim Chap 2 Halacha 19 How should one separate the first fruits? A person descends to his field, sees a fig tree, a ...
1
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1answer
379 views

Which shita are those wearing extra long tallit katan following?

Some rabbonim are wearing really long and large talith katan. For example Rav Shmuel Auerbach shlita (picture below). Rav Elyashiv ztl used to wear a very long one too. Which shita are they ...
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0answers
43 views

Minimum amount required to drink when making Kiddush on Liquor [duplicate]

Possible Duplicate: Minimum Shi'ur for Kiddush on liquor What is the minimum Shi'ur that one is required to consume when making Kiddush on liquor?
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votes
1answer
65 views

How traditional measurements of Omer fit with Shemot 16:16?

According to this Omer is 2.5 liters or more. This is too much bread per person as specified in Shemot 16:16? How do traditional sources justify the value of Omer? Shemot 16:4,8,12,15 e.t.c calls it ...