Physics 1905

Special Relativity

Einstein's revolutionary framework redefining space, time, and energy, establishing that the laws of physics are identical for all non-accelerating observers.

Albert Einstein • Peer-reviewed
Relativity Modern Physics Spacetime
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Economics 1776

Invisible Hand Theory

Adam Smith's proposition that individuals pursuing self-interest inadvertently promote societal good, forming the bedrock of free-market capitalism.

Adam Smith • Verified
Market Economics Classical Theory
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Psychology 1954

Cognitive Dissonance

Festinger's model explaining the mental discomfort experienced when holding contradictory beliefs, driving behavioral change and rationalization.

Leon Festinger • Academic Consensus
Social Psychology Decision Making
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Philosophy 1781

Categorical Imperative

Kant's foundational ethical principle asserting that moral actions must be universally applicable, independent of personal desire or consequence.

Immanuel Kant • Peer-reviewed
Ethics Deontology Moral Philosophy
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Biology 1859

Natural Selection

Darwin's mechanism for evolution, describing how heritable traits that enhance survival and reproduction become more prevalent over generations.

Charles Darwin • Scientific Consensus
Evolution Biology Genetics
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Mathematics 1824

Gödel's Incompleteness

Gödel's groundbreaking proof that any consistent formal system capable of arithmetic contains statements that cannot be proven within the system itself.

Kurt Gödel • Peer-reviewed
Logic Foundations Computability
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