Planck

Constant's German namesake

Planck refers to Max Planck (1858–1947), the German physicist who founded quantum theory.

His name attaches to fundamental constants and units in physics: Planck's constant relates a photon's energy to its frequency; Planck length, Planck time, and Planck mass represent the smallest meaningful scales in physics.

Planck units form a system based on fundamental constants rather than arbitrary standards.

quantum

quanta

Minimum energy increments

entanglement · uncertainty principle · coherence · decoherence · interference · photon · tunneling · eigenstate · measurement · collapse

physicist

quantum theory

Discrete-energy framework for subatomic phenomena

spectroscopy · theoretical physics · scientific revolution · Albert Einstein · Niels Bohr · physical constants

cosmic

ESA

Continental space organization

temperature fluctuations · big bang · dark matter · dark energy · redshift · space telescope

units

quantum gravity

Theory merging spacetime and subatomic physics

Opposites
scale of physics

Planckcosmic scale

Universe-sized frame of reference

classical mechanics · Einstein · Hubble · macroscopic · astronomical

scientific methodology

PlanckFaraday

Electromagnetism pioneer's surname

Edison · experimentalist · empiricist · Rutherford · Michelson

relationship to scientific revolution

PlanckBohr

Danish nuclear science surname

Heisenberg · Einstein · Dirac · revolutionary · iconoclast

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