Federal regulators signed off on the construction and operation
of two nuclear reactors at a Georgia plant. It's the first
license to be granted for a new reactor in the U.S. since 1978.
Nuclear expert Per Peterson discusses the reactors' design,
safety features and what this means for the future of nuclear
power. In his book Concrete Planet, author Robert Courland
discusses why the concrete first used by the Romans is more
durable than the concrete used in most present day buildings.
Plus, mineralogist Peter Stemmerman tells us about his
invention, Celitement and why it is greener than Portland
cement. Linguist David Harrison has travelled to remote corners
of the world seeking the last speakers of endangered languages.
Now, he's using digital tools to to record and revitalize these
dying languages. At the AAAS meeting this week, Harrison
unveiled 'talking dictionaries' for eight languages. This is
SCIENCE FRIDAY. I'm Ira Flatow. Last week, the government
approved the first new nuclear reactor power plants i