Humans

  1. Chemistry

    Chemists have unlocked the secrets of long-lasting Roman concrete

    By searching ancient texts and ruins, scientists found a concrete recipe that could make buildings stronger — and help address climate change.

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  2. Agriculture

    Native Amazonians make rich soils — and ancient people may have too

    Modern Amazonians make nutrient-rich soil from ash, food scraps and burns. The soil strongly resembles ancient “dark earth” found in the region.

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  3. Health & Medicine

    Scientists Say: Kidney

    The kidneys remove waste and excess water from the blood, forming urine.

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  4. Psychology

    There’s a real upside to knowing you could be wrong

    We’re often certain that what we believe is true. But questioning those beliefs, as Galileo did, can help us learn better — and even perform better on tests.

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  5. Health & Medicine

    Let’s learn about allergies

    Allergies are caused by the body’s immune system overreacting to harmless substances.

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  6. Brain

    Scientists Say: Anxiety

    Some nervousness, or anxiety, is normal. Too much can be harmful.

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  7. Health & Medicine

    New brain scans may show if a concussion has not yet healed

    Concussions change certain brain waves, and delta waves may be the best signs of when teens can return to competitive sports.

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  8. Archaeology

    Minding your mummies: The science of mummification

    In this science project, you will learn about the rituals and science of mummification by mummifying a hot dog.

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  9. Health & Medicine

    High school scientists tackle community health and safety risks

    Three finalists in the 2023 Regeneron Science Talent Search aim to improve suicide risk assessment, treatment of sickle cell disease and more.

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  10. Science & Society

    How daylight saving time throws off your internal clock

    Turning the clock ahead knocks our bodies and brains out of sync with the sun. That leads to many potential health issues.

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  11. Archaeology

    Carvings on Australia’s boab trees reveal a people’s lost history

    Archaeologists and an Aboriginal family are working together to find and document a First Nations group’s lost ties to the land.

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  12. Archaeology

    American democracy arrived long before Columbus did

    Indigenous peoples of the Americas developed self-rule long before the pilgrims arrived or the U.S. Constitution was written.

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