Here's a brilliant fun, educational site that can help you and your children
to appreciate the sheer scale of our universe. The site is simple to operate,
and takes the form of familiar images such as the Eiffel Tower, the Hoover
Dam and the Washington Monument. Now imagine zooming out of the image so far
that it shows entire planets. Or zooming in so far that it shows insects,
molecules and atoms. And, in a set of beautifully created graphics and
animations, everything in between. Not only can you zoom with the slider, you
can also click on any object to find out more about it. The site, called The
Scale Of The Universe, is web-based so you can access it from your browser
with no need to install anything.
http://www.techsupportalert.com/content/stunning-site-helps-you-appreciate-universes-scale.htm