On this chapter: if Jimbe read a bit on rocks
"If flowing water touches a water source, it makes obsidian."
Jimbe didn't know where he read that. He didn't care either. He was just glad that he retained this random fact in his memory. Otherwise, Ace would be dead.
He was just accompanying Ace and Luffy towards their escape, when Akainu started badmouthing Whitebeard. Quite angry at that, he started gathering water for his most powerful attack. So, when Akainu struck, he was ready. The water fell on the magma of Sakazuki's arm, on a continuous torrent until it solidified, he then grabbed Ace and Luffy, and threw them to the members of Whitebeard's crew, allowing them to continue escaping, while still running himself. He did not was time, but he did make sure to get the obsidian that was created. It looked nice.
