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There is a strange and mysterious world that surrounds us, a world largely hidden from our senses. The quest to explain the true nature of reality is one of the great scientific detective stories.
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From the first gas turbine to tomorrow's hypersonic jet engines, see the evolution of the machine that is changing the world.
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Meet the innovators who developed newer, safer ways to fall from the sky and those whose lives were saved by them
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Over a single weekend in 1869, a young Russian chemistry professor named Dmitri Mendeleev invents the Periodic Table, bringing order to the growing gaggle of elements. But this sense of order is shattered when a Polish graduate student named Marie Sklodowska Curie discovers radioactivity, revealing that elements can change identities — and that atoms must have undiscovered parts inside them.
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