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More Precious than Gold
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More Precious than Gold
Narrated by:
Dan Schoeneberg
Buy Now for ₹255.43
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Narrated by:
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Dan Schoeneberg
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Written by:
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Tracy Vonder Brink
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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