Reference of Measurements in Halacha: Difference between revisions
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Reference of Measurements in Halacha (view source)
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**(4) Rav Mordechai Willig ([http://www.yutorah.org/lectures/lecture.cfm/760487/Rabbi_Mordechai_I_Willig/How_Much_Matza_Do_You_Need_to_Eat Pesach To-Go, Nisan 5771], p. 60) is of the opinion that the size in volume of a kezayis is 22.5 cubic centimeters. | **(4) Rav Mordechai Willig ([http://www.yutorah.org/lectures/lecture.cfm/760487/Rabbi_Mordechai_I_Willig/How_Much_Matza_Do_You_Need_to_Eat Pesach To-Go, Nisan 5771], p. 60) is of the opinion that the size in volume of a kezayis is 22.5 cubic centimeters. | ||
**(5) Rav Shlomo Miller (approbation to Hiddurei Hamiddot p. 80, second edition) writes that for a sick person on Pesach they can rely on the kezayit as 4/9 oz or 13.1 cc. It is based on the Ritva Brachot 1:7 and Ri Shu'iv Tzav who write that the reviyit is 2 unkeliyot and he explains that these are equivalent to modern day ounces (see Chavot Yair in Chut Hashani 97 and R' Reich in Mesoret Hashekel) and also uses the opinion that the kezayit is 1/3 of a kebeytzeh.</ref> | **(5) Rav Shlomo Miller (approbation to Hiddurei Hamiddot p. 80, second edition) writes that for a sick person on Pesach they can rely on the kezayit as 4/9 oz or 13.1 cc. It is based on the Ritva Brachot 1:7 and Ri Shu'iv Tzav who write that the reviyit is 2 unkeliyot and he explains that these are equivalent to modern day ounces (see Chavot Yair in Chut Hashani 97 and R' Reich in Mesoret Hashekel) and also uses the opinion that the kezayit is 1/3 of a kebeytzeh.</ref> | ||
##The minhag of the world and many other authorities is to follow Rav Chaim Noeh’s opinion.<ref>Vezot HaBracha (pg 6, Birur 1, pg 221) quotes Rav Elyashiv and Rav Shlomo Zalman saying that for [[Bracha Achrona]] the widely accepted measurement of the [[Kezayit]] is according to Rav Chaim Noeh. Vezot HaBracha also mentions that such is the minhag of the world. </ref> | ##The minhag of the world and many other authorities is to follow Rav Chaim Noeh’s opinion.<ref>Vezot HaBracha (pg 6, Birur 1, pg 221) quotes Rav Elyashiv and Rav Shlomo Zalman saying that for [[Bracha Achrona]] the widely accepted measurement of the [[Kezayit]] is according to Rav Chaim Noeh. Vezot HaBracha also mentions that such is the minhag of the world. Yachava Daat 1:16 accepts Rav Noeh's opinion.</ref> | ||
#If one ate between a third and a half a [[KeBaytzah]] one should not make a Bracha achrona because of safek [[Brachot]]. Therefore, one should have less than a third and not make a Bracha achrona or more than a half and make a Bracha achrona.<ref>Mishna Brurah 486:1 </ref> | #If one ate between a third and a half a [[KeBaytzah]] one should not make a Bracha achrona because of safek [[Brachot]]. Therefore, one should have less than a third and not make a Bracha achrona or more than a half and make a Bracha achrona.<ref>Mishna Brurah 486:1 </ref> | ||
#On Mitzvot Deoritta such as eating [[Matzah]] one must be strict to hold a [[Kezayit]] is a half a [[KeBaytzah]]. However, regarding מצות Derabbanan it’s preferable to hold that a [[Kezayit]] is a half a kebaytzah, however, one may rely on the opinion that a [[Kezayit]] is a third a kebaytzah. <ref>Mishna Brurah 486:1 </ref> | #On Mitzvot Deoritta such as eating [[Matzah]] one must be strict to hold a [[Kezayit]] is a half a [[KeBaytzah]]. However, regarding מצות Derabbanan it’s preferable to hold that a [[Kezayit]] is a half a kebaytzah, however, one may rely on the opinion that a [[Kezayit]] is a third a kebaytzah. <ref>Mishna Brurah 486:1 </ref> | ||
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===Prutah=== | ===Prutah=== | ||
#A [[prutah]] is 1/40 of a gram of silver, which today is equal to {{PrutaVar}} cents.<ref>This evaluation of the pruta in pennies uses the price of an ounce of silver given by a webserver with that information [http://services.packetizer.com/spotprices/ here].</ref> However, the [[prutah]] with regards to the mitzvah of returning a lost object is discussed [[Returning_Lost_Objects#Worth_a_Prutah| here]].<ref>Shulchan C.M. 88:1 says a [[prutah]] is a half of a pearl of barley. Shiurei Torah (Rav Chaim Noeh pg 177) and | #A [[prutah]] is 1/40 of a gram of silver, which today is equal to {{PrutaVar}} cents.<ref>This evaluation of the pruta in pennies uses the price of an ounce of silver given by a webserver with that information [http://services.packetizer.com/spotprices/ here].</ref> However, the [[prutah]] with regards to the mitzvah of returning a lost object is discussed [[Returning_Lost_Objects#Worth_a_Prutah| here]].<ref>Shulchan C.M. 88:1 says a [[prutah]] is a half of a pearl of barley. Shiurei Torah (Rav Chaim Noeh pg 177) and Shiurin Shel Torah (Steipler p. 65; first edition p. 86) say a [[prutah]] is 1/40 of a gram of silver (which currently is about 2.3 cents). Rav Hadar Margoliyat in Hiddurei Hamiddot (second edition p. 252) concludes that the prutah is no more than 1/45 of a gram. Halachos of [[Chanukah]] (Rabbi Shimon Eider, pg 38) quotes Rav Moshe Feinstein saying that a [[prutah]] is 2 or 3 cents and not just one penny. See Halachos of Other People’s Money (Rabbi Bodner pg 150) who quotes Rav Moshe regarding a [[prutah]] for the mitzvah of returning a lost object. </ref> | ||
===Dinar=== | ===Dinar=== | ||
