Consider the motion of the maglev.

Here is a movie from the internet, about trains in the country of Japan, if you are looking for posts that relate to Stevens and class and what not check down below.

I just posted this I guess to use some of the visual stuff available, it is not directly related to class but I did find out that the word maglev is a combo of magnetic and levitation and apparently a maglev is a very fast train. They have them in Japan.