Environment
For a better brick, just add poop
Sewage sludge. Cow dung. They’re not just waste — scientists are finding uses for processed poop in construction materials.
By Laura Allen
Chemistry
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In what could be a boon to forensics, Iowa State University chemists have come up with a way to analyze the age of fingerprints.
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PhysicsExplainer: Radioactive dating helps solve mysteries
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This property causes materials — including some animals’ skin, fur or feathers — to glow under light.
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EnvironmentThis chemist uses online videos to teach about the perils of microplastics
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These unusual materials have a host of unusual properties. You can even make a starch-infused version in your kitchen.