I don’t usually post things like this, but it truly is one of the funniest things I’ve ever seen:

An e-mystery is finally resolved.

How does
the small arrow on your computer monitor work when we move the mouse?

Haven’t you ever wondered how it works?

Now, through the miracle
of high technology, we can see how it is done. With the aid of a screen
magnifying lens, the mechanism becomes apparent.

Click on the link below
and you will find out. The image may take a minute or two to download and when
it appears, slowly move your mouse over the light grey circle and you will see
how the magic works.