How does the prism decompose light?
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How do tv signals come?
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How does scanning tomography work?
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How do X-rays shine the body?
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What is a falling ray?
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Why is the sky blue?
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What are interference bands?
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How do objects absorb light?
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What are the photons?
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How does light shine?
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What is the mirror structure?
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How does light refract?
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Why the sun is red?
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How does fiber optic fiber work?
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How do we see things?
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Where does energy come from?
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Measuring on Fahrenheit and Celsius scales
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How is the temperature measured?
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What is the difference between heat and temperature?
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What is thermal conductivity?
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How are mass and energy related?
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What is a Ratio?
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What is an absolute zero?
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How is energy saved?
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What is energy?
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