Scientists Say

A weekly word defined, in a sentence and in context.

  1. Life

    Scientists Say: Ichnology

    This field of science looks to understand life — past and present — by studying how organisms altered their surroundings.

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  2. Physics

    Scientists Say: Coriolis Effect

    Because Earth spins, airborne objects traveling far and fast — such as airplanes — experience deflections in their motion.

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  3. Health & Medicine

    Scientists Say: Calorie

    These little units help us measure energy transfer in chemistry, nutrition and beyond.

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  4. Physics

    Scientists Say: Muon

    Tracking muons raining down on Earth can reveal new details of pyramids, volcanoes and thunderstorms.

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  5. Animals

    Scientists Say: Camouflage

    Plants and animals alike hide in plain sight using this sneaky strategy.

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  6. Math

    Scientists Say: Prime number

    Prime numbers’ unique quality — being divisible only by themselves and one — makes them useful for encrypting secret information.

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  7. Plants

    Scientists Say: Fertilize

    This word describes both a stage of sexual reproduction and the agricultural practice of adding nutrients to soil.

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  8. Brain

    Scientists Say: Deep brain stimulation

    Through wires implanted in a person’s brain, this medical treatment can help treat various conditions.

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  9. Humans

    Scientists Say: Prehistoric

    Researchers rely on prehistoric tools and other artifacts to study the vast stretches of time before recorded history.

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  10. Physics

    Scientists Say: Gamma ray

    Lightning bolts, nuclear explosions, colliding stars and black holes all throw off this high-energy type of light.

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  11. Animals

    Scientists Say: Vertebrate

    Animals with spines, or vertebrates, come in all shapes and sizes.

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  12. Physics

    Scientists Say: Ultrasonic

    This word describes sound waves that have frequencies too high for human ears to hear.

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