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
gray circle and you will see how the magic works.
Make your mouse go fast in the circle and listen to them fuss...LOL
http://www.1-click.jp/