Today’s Daf Yomi Question:
The Gemara says that hammering out to broaden the chain around the animal’s neck is considered a ‘tikun’ (constructive change). Tosfos (D”H Bisherischan) states that animal chains are typically worn tightly. If so why do we consider it a ‘tikun’?
An un-pierced needle is not capable of becoming tamei, but can be moved on Shabbos. Rashi explains the reason it is not Muktzah is because it can be used for splinter-removal. Why is this reason not sufficient to render it a kli for tumah as well?