Scientists Say
A weekly word defined, in a sentence and in context.
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PhysicsScientists Say: Muon
Tracking muons raining down on Earth can reveal new details of pyramids, volcanoes and thunderstorms.
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AnimalsScientists Say: Camouflage
Plants and animals alike hide in plain sight using this sneaky strategy.
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MathScientists 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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PlantsScientists Say: Fertilize
This word describes both a stage of sexual reproduction and the agricultural practice of adding nutrients to soil.
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BrainScientists Say: Deep brain stimulation
Through wires implanted in a person’s brain, this medical treatment can help treat various conditions.
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HumansScientists Say: Prehistoric
Researchers rely on prehistoric tools and other artifacts to study the vast stretches of time before recorded history.
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PhysicsScientists 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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AnimalsScientists Say: Vertebrate
Animals with spines, or vertebrates, come in all shapes and sizes.
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PhysicsScientists Say: Ultrasonic
This word describes sound waves that have frequencies too high for human ears to hear.
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ChemistryScientists Say: Lignin
This rigid polymer transports water and gives trees their strength.
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PhysicsScientists Say: Supercool
When a liquid is supercooled, it has been chilled below its freezing point without freezing.
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MathScientists Say: Imaginary Number
These numbers may not be “real,” but they sure aren’t make-believe.