PIZZA LUNCH PODCASTS
Our Energy Future: Science and Technology Challenges for the 21st Century
Chemist Thomas Meyer, director of the Solar Energy Research Center at the University of North Carolina, Chapel Hill, discusses the status of the world’s energy supply. In particular, he presents the idea that the sun’s energy could be used to make fuels from water and carbon dioxide for heating, transportation and energy storage. (September 24, 2009)
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VIDEO: How Hair Ice Grows
In 2013, American Scientist featured an article on odd ice formations on plant stems, including these curling ribbons of ice. One of the types of ice discussed in the article was hair ice—long, thin strands of ice that grow under quite specific conditions. The only problem is that a new study shows the theory put forth at the time—that gas pressure pushes the water out—isn’t correct... (click the link above to read more).
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