eruvin 102

discussion of bolts used inside the temple
and outside of the temple

leads to tents and hats,
hinges,
bandages,
and fixing broken strings of musical instruments played inside the temple

shabbat 138

perils of wearing a big hat in the wind & forgetting torah

things leave our head, and there is no shelter

(the prohibition of building a tent, including discussing if a big hat with a wide brim is like a tent. and what happens if it blows off in the wind. and later on in the page, quotes Rav famous teaching that Torah is destined to be forgotten. for english translation of this talmud page, see here)