The use of ultrasound improved prenatal care.
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The invention of the stethoscope improved medical diagnostics.
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Time moves slower in gravity.
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Rats have demonstrated empathy in laboratory studies.
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The Stroop effect demonstrates how conflicting information can slow reaction time.
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In 1954, a scientist allowed himself to be bitten by mosquitoes to study malaria transmission.
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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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The Manhattan Project required enormous scientific collaboration.
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Earthquakes occur when tectonic plates shift along faults.
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