rewrite
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Earth
Geologists rewrite textbooks with new insights from Grand Canyon’s Cambrian rocks
GSA Today’s cover features the Cambrian period of the Grand Canyon. Credit: GSA Since shortly after our planet formed, Earth’s 4.6 billion year history has been dominated by single-celled life. About 500 million years ago, a dramatic event called the Cambrian “explosion” occurred, during which an incredible diversity of life forms was left behind in the rock record. These fossils…
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Chemistry
Chemists say it’s time to break 100-year-old rules and rewrite textbooks
Credit: Pixabay/CC0 Public Domain Chemists at UCLA have discovered a big problem with the basic rules of organic chemistry that have existed for 100 years. That’s not true at all. And they say, “It’s time to rewrite the textbooks.” Organic molecules are primarily composed of carbon and are characterized by having a specific shape and arrangement of atoms. Molecules known…
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