Toxicology

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The LD50, a common measure of toxicity, represents the dose of a substance that is lethal to 50% of a test population. It's not necessarily a precise measure for humans, as species can react very differently. elaborate share

Astronomy

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There are more stars in the universe than grains of sand on all the beaches on Earth. elaborate share

Modeling

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Many models use specific posing techniques to make their bodies appear longer and leaner in photos, even if they aren't actually that tall or slender. elaborate share

Light Curing

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Light curing, used in dentistry and other applications, relies on a process called photopolymerization, where light triggers a chemical reaction that hardens a liquid resin into a solid. elaborate share

Psychology

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The "bystander effect" describes the phenomenon where the more people present during an emergency, the less likely any one person is to help. elaborate share

Molecular Gastronomy

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Molecular gastronomy utilizes techniques like spherification to create caviar-like spheres of flavor, often from unexpected ingredients. elaborate share