Brazil is in the midst of political turmoil as impeachment proceedings move forward against the country's president Dilma Rousseff. What's next for the country and its government?
Alexander Graham Bell is best remembered as the father of the telephone. But a science journalist found evidence that the credit actually belongs to a lesser known inventor. He presents the surprising story behind one of history’s most important and lucrative inventions
- Seth Shulman author, editor, and journalist specializing in issues in science, technology, and the environment. His most recent books include "Unlocking the Sky" and "Owning the Future."
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