to be strong on physics
101Kerr electro-optic effect — ▪ physics in physics, the inducement of double refraction of light in a transparent substance when a strong electric field is applied in a direction transverse to the beam of light. In double refraction, the index of refraction (a measure… …
102plasma oscillation — ▪ physics in physics, the organized motion of electrons or ions in a plasma. Each particle in a plasma assumes a position such that the total force resulting from all the particles is zero, thus producing a uniform state with a net charge… …
103Coulomb force — ▪ physics also called Coulomb Interaction, attraction or repulsion of particles or objects because of their electric charge. One of the basic physical forces, the electric force is named for a French physicist, Charles Augustin de… …
104nuclear model — ▪ physics any of several theoretical descriptions of the structure and function of atomic nuclei (the positively charged, dense cores of atoms). Each of the models is based on a plausible analogy that correlates a large amount of… …
105color force — Physics. See strong force (def. 2). [1975 80] * * * …
106gravitational field — Physics. 1. the attractive effect, considered as extending throughout space, of matter on other matter. 2. the region surrounding an astronomical body in which the force of gravitation is strong. [1915 20] * * * …
107Yukawa meson — Physics. a hypothetical elementary particle with finite rest mass, whose exchange between nucleons would account for the strong short range forces between nucleons: subsequently identified as the pion. [1960 65; after H. YUKAWA] * * * …
108electron beam — ▪ physics stream of electrons (as from a betatron) generated by heat ( thermionic emission), bombardment of charged atoms or particles (secondary electron emission), or strong electric fields (field emission). Electrons may be collimated by …
109Yukawa meson — Physics. a hypothetical elementary particle with finite rest mass, whose exchange between nucleons would account for the strong short range forces between nucleons: subsequently identified as the pion. [1960 65; after H. YUKAWA] …
110subatomic particle — or elementary particle Any of various self contained units of matter or energy. Discovery of the electron in 1897 and of the atomic nucleus in 1911 established that the atom is actually a composite of a cloud of electrons surrounding a tiny but… …
