Well, this is the hospital that Jacob is staying. I hope he's doing well...
Can you give me the room of Jacob Hammonds?
Sure, he's in Room C110.
Not too well, actually. The doctors tell me I don't have long.
Hey, how're you doing buddy?
In fact, there are some things I need you to know before my time is up...
MagLev trains work because every magnet has a north pole and a south pole. Similar poles of two magnets repel each other; opposite poles attract each other. These principles govern the levitation of maglev trains.
Electromagnets are magnetic only when an electric current flows through them. The north and south poles of an electromagnet are related to the direction of the current. If the direction of the current is reversed, the poles are reversed.
This is the last time I take anything you say seriously.