PORTLAND, Ore. — You might have thought that scientists had already cataloged the 118 natural elements–from hydrogen to silicon to uranium–and their various isotopes. Unfortunately, only the first ...
Researchers analyze the ratios of calcium isotopes in bones and fossils to learn more about what dinosaurs once ate. Credit: Jeremy Martin/CNRS/University of Lyon 1 Calcium isotope ratios measured in ...
Plants need phosphorus, an essential nutrient, to grow. This nutrient is present in fertilizers and applied to crops to increase their yields. One downside of too much phosphorus in this agricultural ...
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