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prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem

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Shabbos 74


(a) The Beraisa states 'Hayu Lefanav Minei Ochlin, Borer ve'Ochel, Borer u'Meni'ach, ve'Lo Yivror, ve'Im Birar, Chayav Chatas'. What is wrong with explaining that ...
  1. ... one may select for the same day, but not for tomorrow, because someone who selects for tomorrow, will be Chayav a Chatas?
  2. ... one may select less than a Shiur, but for more than the Shiur, one is Chayav a Chatas?
  3. ... one may select with one's hands, but not using a wooden funnel or a dish, which is forbidden, but he will be only be Chayav a Chatas if he uses a sieve?
  4. ... one may select the good from the bad, but for selecting the bad from the good, one is Chayav Chatas?
(b) Rava praised Abaye for his interpretation of the Beraisa. How *did* Abaye explain the Beraisa?
(a) Rav Ashi and Rav Yirmiyah mi'Difti argue whether the Beraisa should read 'Chayav' or 'Patur Aval Asur'.
In which case would he be Chayav, and in which case, Patur?

(b) Rav Bibi emptied the basket of fruit in front of the Talmidim rather than pick out the good fruit, and give it to them.
What was Rav Dimi's Safek?

(c) According to Chizkiyah, someone who picks Turmus-beans from their waste, is Chayav.
Does this mean that Chizkiyah holds that one is Chayav for picking out the good from the bad?

Answers to questions



(a) What do the following mean, and which joint Melachah do they involve?
1. Parim Silka?
2. Salis Silta?
(b) Which other Melachah might one perform in the latter case?

(c) The Mishnah lists baking among the thirty-nine Melachos.
If baking was not performed in the construction of the Mishkan, then what was?

(d) Then why does the Tana mention baking?

(a) If someone throws a wet peg into the oven, he is Chayav for cooking.
What is the Chidush?

(b) And what is the Chidush in telling us that one is Chayav a Korban for heating -up pitch?

(a) Someone who makes an earthenware barrel (be'Shigegas Melachos), is Chayav seven Chata'os: 1. grinding the lumps of earth; 2. discarding the thick pieces (selecting); 3. sifting; 4. mixing the earth with water; 5. smoothening the shaped barrel; 6. lighting the fire of the furnace; 7. placing the barrel in the fire to harden.
Why is he not also Chayav for digging the earth?

(b) Which additional Melachah will one have perform for manufacturing an oven?

(c) If someone fabricates a reed bee-hive, he is Chayav eleven Chata'os - beginning with pruning the reeds, and ending with cutting the ends of the reeds that still protrude after the completion of the weaving. One of the Melachos involves grinding.
Why could this not constitute boring a hole in the boards of the weaving -loom, to fit the ends of the reeds which form the warp? What then, *does* constitutes grinding?

(d) How, in the process, might he be Chayav for an additional two Melachos?

(a) Rabbah bar bar Chanah quotes Rebbi Yochanan, who says that someone who spins wool directly from the sheep's back, has performed three Melachos.
Which three?

(b) What does Rav Kahana say about this?

(c) Why can we not prove Rebbi Yochanan's opinion from the Pasuk which describes how the women actually spun the goats' hair directly from the backs of the goats - to manufacture the goats-skin curtains for the Mishkan?

(d) 'ha'Tolesh es ha'Kanaf, ve'Hakomto, ve'Hamorto - Chayav Shalosh Chata'os'.
What are these three, and which three Melachos has he performed?

(a) Why can the source in the Mishkan for tying knots not be ...
  1. ... tying the curtain-cords to the tent-pegs?
  2. ... the knots that the weavers would tie, whenever a strand from the curtains would tear?
(b) What is wrong with the suggestion that when two knots appeared next to each other in two consecutive threads, they would untie one and leave the other?

(c) What *did* they in fact, do, when this happened?

(d) So what *is* the source for tying knots for the construction of the Mishkan?

(a) The Gemara asks on 'Tofer Sh'tei Tefiros': 've'Ha Lo Kayma'?
What is the Gemara asking?

(b) What does the Gemara answer?

(c) Where was tearing performed in the Mishkan?

Answers to questions
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