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Planck's law describes the spectral density of electromagnetic radiation emitted by a black body in thermal equilibrium at a given temperature. It shows that the radiation has a maximum intensity at a wavelength that depends on the temperature, and that the energy of the radiation is quantized in units of hν, where h is the Planck constant.
Einsteinium is a synthetic chemical element with symbol Es and atomic number 99. It was named after Albert Einstein and is a member of the actinide series and the seventh transuranium element.
A Taylor series is an infinite sum of terms that are expressed in terms of the function's derivatives at a single point. Learn how to find the Taylor series of common functions, such as polynomials, exponential, logarithmic, and trigonometric, and how they relate to analytic functions and Zeno's paradox.
Noble gas is the term for the group 18 elements of the periodic table, which are helium, neon, argon, krypton, xenon, and radon. They are odorless, colorless, monatomic gases with very low chemical reactivity and cryogenic boiling points.
Quantum entanglement is the phenomenon of particles being correlated in such a way that measuring one affects the other, even if they are far apart. Learn about the history, experiments, and applications of entanglement, and how it challenges classical physics.
Gallium is a chemical element in group 13 of the periodic table, similar to aluminium, indium, and thallium. It is a soft, silvery metal at standard temperature and pressure, but becomes silvery white in its liquid state. It is used in alloys, semiconductors, and as a dopant in semiconductor substrates.
Learn how quantum mechanics and special relativity are combined to form relativistic quantum mechanics, which describes the behavior of particles at high velocities and predicts antimatter, spin and fine structure. Explore the different formulations, equations and applications of RQM in physics.
Sir Isaac Newton FRS (25 December 1642 – 20 March 1726/27 [a]) was an English polymath active as a mathematician, physicist, astronomer, alchemist, theologian, and author who was described in his time as a natural philosopher. [7]