Each weekday, the HowStuffWorks staff picks an interesting and informative link for the
Link of the Day section of HSW. You can also view previously chosen
links in the HSW Link Archive. Here is today's
Today's link points to how infrared photography works.
This U.K. site offers a lot of information about an interesting type of
photography for film cameras and some digital cameras.
Be sure to see the "Subjects" section!