Then Ma Lin began to understand that teaching is a very important task.
He taught everyone how to make charcoal, lime, and soap, added blow facilities to clay kilns, and used plant ash to coat pottery surfaces to form a glaze.
He told everyone that the sun, moon, and stars move from east to west, and rivers, lakes, and seas flow from west to east.
As for the reason, it's because the earth rotates from west to east, so the sun, moon, and stars all rise in the east and set in the west.
He deeply regretted that his chemistry knowledge was insufficient, so he couldn't demonstrate various phenomena to everyone.
He felt that, in this era, chemistry was much more useful than physics. For example, with knowledge of chemistry, so many substances in the wild could be utilized.
As for mechanics, electromagnetism, and atomic physics, they are not applicable here at all.
He found it easy to teach everyone a variety of games.