As a retired physics teacher, I can testify that Al Bartlett is one of
the heroes of the physics teaching community.  His presentations at
national meetings were always interesting and insightful.  His columns
in the Physics Teacher magazine have been outstanding.  He wrote a
series of articles about the exponential function as well as many
other very diverse topics.

Larry A.

On Fri, Sep 21, 2012 at 4:15 PM, Hector Zapata <hlzapata@gmail.com> wrote:
> http://www.youtube.com/watch?v=F-QA2rkpBSY