prepared by Rabbi Eliezer Chrysler of Kollel Iyun Hadaf
Rosh Kollel: Rabbi Mordecai Kornfeld
(a) Why is it permitted to extinguish a hot piece of metal lying in the street, but not a burning wooden faggot?
(b) We ask that, since Shmuel holds like Rebbi Shimon by 'Davar she'Ein Miskaven', why is he not lenient here too, like Rebbi Shimon. What do we really mean to ask?
(c) What do we answer?
(a) What does one do with dangerous thorns ...
1. ... in the Reshus ha'Rabim?
2. ... in a Karmelis?
(b) Why the difference?
(a) Why do Beis Shamai permit the pouring of hot water into cold, but not vice-versa?
(b) Why do Beis Hillel Beis Hillel forbid pouring cold water into hot water in a bath-tub which is a K'li Rishon (or even if it a K'li Sheni), but permit even cold water into hot - when it is in a cup?
(a) Rav Yosef maintains 'Sefel, Harei Hu ke'Ambati'. On what grounds does Abaye disagree with this statement?
(b) The Beraisa concludes 've'Rebbi Shimon ben Menasyah Oser', and Rav Nachman rules like him. What problem does this create with Rav Yosef's ruling?
(c) How does the Gemara nevertheless resolve Rav Yosef with the opinion of Rebbi Shimon ben Menasyah?
(d) Does this mean that Rebbi Shimon ben Menasya holds like Beis Shamai?
(a) How do we initially explain Rebbi Chiya's Beraisa 'Nosen Adam Kiton shel Mayim le'Toch Sefel Shel Mayim, Bein Chamin le'Toch Tzonan, Bein Tzonan le'Toch Chamin'?
(b) Why could Rava not have learnt from there the concession of pouring even cold water into hot water?
(c) How do we amend the Beraisa, for Rava's proof from the Beraisa to be correct?
(a) Why is it forbidden to add spices to a boiling pot even after it has been removed from the stove?
(b) Why is it permitted to add spices to a dish or plate containing hot food?
(c) Rebbi Yehudah says 'la'Kol Hu Nosen, Chutz mi'Davar She'Yesh bo Chometz ve'Tzir'. What makes Chometz and Tzir different than other hot dishes?
(a) 'Rebbi Yehudah Omer, la'Kol Hu Nosen - Chutz mi'Davar she'Yesh Bo Chometz ve'Tzir'. What is Rebbi Yehudah talking about, and how might he be either more lenient or more strict than the Tana Kama?
(b) What does the Gemara conclude? Is he more lenient that the Tana Kama or is he stricter than him?
(a) Rav Yosef thought that salt has the same Din as spices when it comes to putting it into a hot K'li Rishon or K'li Sheni. Abaye, again quoting a Beraisa of Rebbi Chiya, points out that salt is not like spices. But there are two versions of what the Beraisa said. One of the versions concurs with Rav Nachman's statement 'Tzericha Milcha Bishula ke'Bisra de'Tura'. What does Rav Nachman mean?
(b) What does the other version hold?
(a) When does the Tana of our Mishnah permit one to place a receptacle underneath a lamp, to receive the oil which drips on Shabbos?
(b) Does this mean that the oil is then permitted?
(c) Rav Chisda learns from our Mishnah, that one may not place a receptacle under a chicken which is laying an egg on a slope, but that one is permitted to place it over an egg in a trash-heap to prevent it from being trodden on and broken. How does Rabah explain Rav Chisda's reasoning?
(a) How does Rabbah explain the Mishnah (or the Beraisa), which permits placing ...
1. ... a receptacle underneath a broken barrel of Tevel wine, from which wine is dripping?
2. ... a receptacle underneath a lamp to catch the falling sparks?
3. ... a dish over a lamp to prevent the beam from burning?
4. ... a bench to support a broken beam which broke?