You're moving around the Internet, sending emails, watching videos, and reading this post.

It can seem like those activities take place in a non-physical, vaporous world.

There are no wires connecting you to the Internet, no hoses pumping, and no gears whirring.

It all seems very airy - almost magical.

It isn't!

Your emails, this website, and the YouTube videos you watch are stored in a very physical place. Accessing them is a very physical process.