Description
In 1904, workers at the Bronx Zoological Park in New York City observed a small sunken canker on the stem of an American chestnut tree. Within 40 years, the fungus that created this canker virtually wiped out the onetime monarch of the eastern hardwood forest. Chestnut blight remains in the forests of Virginia, but scientists are trying to breed trees that will prove resistant to the destructive fungus. Plant pathologist Gary Griffin (Virginia Tech) discusses recovery efforts. Also featured: Environmental scientist Stan Ulanski (James Madison University) breaks down the science of fly fishing. What do Newton’s second law and the polarization of light have to do with angling?
