The text talks about the kanji character "橋", which means "bridge" in Japanese and has 16 strokes. It is the 497th most common kanji and is part of the JLPT. It also has various readings and compounds, and is associated with the "wood" radical. There is a learning web app called WaniKani that uses mnemonics to teach kanji, and another called Kanji alive which helps students learn to read and write kanji correctly.