Episode Synopsis "Earth's Vital Signs"

How did a love of history lead to a breakthrough career that, among other things, successfully took the body temperatures of dinosaurs? Caltech geochemist John Eiler talks about how he revived a neglected field to determine the isotopic structures of natural molecules and solve problems in Earth history, environmental science, and planetary science along the way.John Eiler is the Robert P. Sharp Professor of Geology and Geochemistry at Caltech.

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