More Precious than Gold
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Narrated by:
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Dan Schoeneberg
About this listen
Aluminum was once more valuable than gold. A breakthrough in refining aluminum from rock transformed it from rare matter to sandwich wrapper. In this science story, you'll learn how two chemists, Charles Hall and Paul Héroult, solved the problem.
©2018 Tracy Vonder Brink (text), Rupert van Wyk (cover art) (P)2018 Cricket Media Inc.
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