electrically polarized
71Electron microscope — Diagram of a transmission electron microscope A 197 …
72Luminiferous aether — The luminiferous aether: it was hypothesised that the Earth moves through a medium of aether that carries light In the late 19th century, luminiferous aether or ether, meaning light bearing aether, was the term used to describe a medium for the… …
73Polyamory — Polyamorous redirects here. For the Breaking Benjamin song, see Polyamorous (song). The infinity heart is a widely used symbol of polyamory.[1] …
74Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …
75Electric field — In physics, the space surrounding an electric charge or in the presence of a time varying magnetic field has a property called an electric field (that can also be equated to electric flux density). This electric field exerts a force on other… …
76Phased array — This article is about general theory and electromagnetic phased array. For the ultrasonic and medical imaging application, see phased array ultrasonics. In wave theory, a phased array is a group of antennas in which the relative phases of the… …
77Power factor — For other uses, see Power factor (pistol). The power factor of an AC electric power system is defined as the ratio of the real power flowing to the load over the apparent power in the circuit,[1][2] and is a dimensionless number between 0 and 1… …
78Sense — Senses are the physiological methods of perception. The senses and their operation, classification, and theory are overlapping topics studied by a variety of fields, most notably neuroscience, cognitive psychology (or cognitive science), and… …
79Earth battery — An Earth battery is composed of a pair of electrodes made of two dissimilar metals, such as iron and copper, which are buried in the soil or immersed in the sea. A device that is placed in water is labeled a sea battery . It can act as a receiver …
80Paraelectricity — is the ability of many materials (specifically ceramic crystals) to become polarized under an applied electric field. Unlike Ferroelectricity; this can happen even if there is no permanent electric dipole that exists in the material, and removal… …
