pointlike
11M-theory — For a generally accessible and less technical introduction to the topic, see Introduction to M theory. String theory …
12Mathematical formulation of quantum mechanics — Quantum mechanics Uncertainty principle …
13Quantum chromodynamics — Standard model of particle physics Standard Model …
14Electric motor — For other kinds of motors, see motor (disambiguation). For a railroad electric engine, see electric locomotive. Various electric motors. A 9 volt PP3 transistor battery is in the center foreground for size comparison. An electric motor converts… …
15Tau lepton — Infobox Particle bgcolour = name = Tau Lepton caption = num types = composition = Elementary particle family = Fermion group = Lepton generation = Third interaction = Gravity, Electromagnetic, Weak antiparticle = Antitauon theorized = discovered …
16Membrane (M-Theory) — In theoretical physics, a membrane, brane, or p brane is a spatially extended mathematical concept that appears in string theory and its relatives (M theory and brane cosmology). The variable p refers to the number of spatial dimensions of the… …
17Effective field theory — In physics, an effective field theory is an approximate theory (usually a quantum field theory) that includes appropriate degrees of freedom to describe physical phenomena occurring at a chosen length scale, while ignoring substructure and… …
18Sloan Digital Sky Survey — The Sloan Digital Sky Survey or SDSS is a major multi filter imaging and spectroscopic redshift survey using a dedicated 2.5 m wide angle optical telescope at Apache Point Observatory in New Mexico. The project was named after the Alfred P. Sloan …
19Messier 22 — Core of Messier 22 Observation data (J2000 epoch) Class VII C …
20Preon — In particle physics, preons are postulated point like particles, conceived to be subcomponents of quarks and leptons. The word was coined by Jogesh Pati and Abdus Salam in 1974. Interest in preon models peaked in the 1980s but has slowed as some… …
