Native American Heritage Month

Craig Martin
Craig’s Kindle Notes & Highlights
How the World Really Works: A Scientist’s Guide to Our Past, Present and Future, by Vaclav Smil

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In two centuries, the human labor to produce a kilogram of American wheat was reduced from 10 minutes to less than two
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How the World Really Works: A Scientist’s Guide to Our Past, Present and Future
How the World Really Works: A Scientist’s Guide to Our Past, Present and Future
by Vaclav Smil
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