Physics articles needing expert attention

thumb|Top of a foamy drink Foam is a two-phase material systems where a gas is dispersed in a second, non-gaseous material, specifically, in which gas cells are enclosed by a distinct liquid or solid material. Foam "may contain more or less liquid [or solid] according to circumstances", although in the case of gas-liquid foams, the gas occupies most of the volume.

thumb|upright=1|right|Cavitating propeller model in a Water tunnel (hydrodynamic)|water tunnel experiment

object movement along a circular path

type of light water nuclear reactor used for the generation of electrical power

form of motion of an object that has velocities in both the dimensions

volume of fluid which passes per time

Iontophoresis is a process of transdermal drug delivery by use of a voltage gradient on the skin. Molecules are transported across the stratum corneum by electrophoresis and electroosmosis and the electric field can also increase the permeability of the skin. These phenomena, directly and indirectly, constitute active transport of matter due to an applied electric current. The transport is measured in units of chemical flux, commonly μmol/(cm2×hour). Iontophoresis has experimental, therapeutic and diagnostic applications.

Phenomenon in physics

Nucleocosmochronology, or nuclear cosmochronology, is a technique used to determine timescales for astrophysical objects and events based on observed ratios of radioactive heavy elements and their decay products. It is similar in many respects to radiometric dating, in which trace radioactive impurities were selectively incorporated into materials when they were formed.

theory of gravity on antimatter

description of net flow of fluid across a semipermeable membrane

Alleged anomalous behavior of pendulums or gravimeters

Z(4430) is a mesonic resonance discovered by the Belle experiment. It has a mass of . The resonant nature of the peak has been confirmed by the LHCb experiment with a significance of at least 13.9 σ. The particle is charged and is thought to have a quark content of , making it a tetraquark candidate. It has the spin-parity quantum numbers JP = 1+.

unit of photon flux

mallet helpful in minimizing damage to the struck surface and in controlling striking force, with minimal rebound from the struck surface

change in the apparent luminosity of emitting matter that is moving close to the speed of light

equation relating transport coefficients to correlation functions

general framework for describing the quantum mechanical evolution of a system in a non-equilibrium state

any thin, repetitive surface designed to reflect, transmit or absorb electromagnetic fields based on the frequency of the field

mixed state describing a system in thermal equilibrium

constraints on possible particle properties