The human brain operates on about 20 watts of power.
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The invention of the thermometer improved diagnosis of illness.
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Gravitational waves were detected a century after Einstein predicted them.
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The identification of vitamins advanced nutritional science.
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The Asch conformity experiment demonstrated the influence of group pressure.
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Fossilized pollen helps scientists understand ancient ecosystems.
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The use of microscopes improved understanding of pathogens.
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Dark matter is believed to make up most of the universe’s mass but has not been directly observed.
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Learning involves changes in neural connections.
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