Today's daf is sponsored by Natasha Shabbat in honor of the second yahrtzeit of her father. "My teacher, David ben Shalom haKohen v'Sarah was a brilliant doctor and a lifelong learner and teacher. He would have been very proud of me for taking on the commitment to Daf Yomi and very interested to hear all about it. I still want to call him every day to tell him what I've learned in today's Daf." In the book of Ezekiel there is a description of a stream that will come out of the Holy of Holies in the future and will create a mikveh at the entrance to King David's house. Is it permissible to pass through water on Shabbat wearing shoes or sandals? Does the prohibition of washing include other things that cool people off? Is it related to the action or to the result? On what does it depend? Stories are brought about rabbis who wet a cloth before Yom Kippur or Tisha B'av and used it to wash their face, hands and feet. What was the difference between what they did on Yom Kippur and Tisha b'av and why? Rabbi Elazar is asked about wearing cork shoes on Yom Kippur. Various rabbis are brought who wore shoes made of different materials (not leather) on Yom Kippur. Is it the same for public fast days? Rami Bar Hama raises a difficulty from a source about a prosthetic leg. Abaye and Rava each resolve the difficulty differently. Why is it permitted to bathe and anoint children but not to wear shoes? The mishna that permits certain people to wash or wear shoes is only according to Rabbi Chanania ben Tradiyon as in a braita it appears that the rabbis disagree and do not permit it. Why are those people permitted, according to him?