You can edit the text in this area, and change where the contact form on the right submits to, by entering edit mode using the modes on the bottom right.
Form Block
This form needs a storage option. Double-click here to edit this form, and tell us where to save form submissions in the Storage tab.
Learn more
...or more accurately he shows why it's impossible to explain how they work with reference to peoples existing understanding of the world. In short it's complicated and you need some basic physics to even start.