Problems? Your computer may refuse to show anything
other than an empty box. If so, and you are using Windows 7 as the webmaster does,
fixing the problem is most simple. Print the image you will come to here &
follow the few instructions. In other browsers I presume that you would follow
the same approach i.e. get to the 'Java' program on your computer & fix the
Clint was, in 1999, & probably still is in 2009 when this site must be moved, a Professor of Physics at the University of Wisconsin at Madison. We thank him for his kindly permitting the distribution of his 'gif' images on a non-commercial site such as this.
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