Humans can detect the smell of rain, called petrichor, at concentrations as low as 5 parts per trillion.
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The Ebbinghaus forgetting curve describes memory decay over time.
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The barometer measures atmospheric pressure.
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The peacock’s colorful feathers evolved through sexual selection.
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The Human Genome Project mapped the entire human genetic sequence.
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In 1953, Watson and Crick described the double-helix structure of DNA.
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The Earth's core generates geothermal heat.
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Electricity involves the movement of charged particles.
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Vaccination campaigns have eliminated several diseases in many regions.
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