self-rectifying — (ˈ) ̷ ̷| ̷ ̷ ̷ ̷ˌ ̷ ̷ ̷ ̷ adjective : capable of accomplishing rectification by itself * * * adj. * * * self recˈtifying adjective (radiology) (of an X ray tube) in which an alternating voltage is applied directly between target and cathode • • • … Useful english dictionary
electronics — /i lek tron iks, ee lek /, n. (used with a sing. v.) the science dealing with the development and application of devices and systems involving the flow of electrons in a vacuum, in gaseous media, and in semiconductors. [1905 10; see ELECTRONIC,… … Universalium
Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism … Wikipedia
Electrical ballast — Choke ballast (inductor) used in older lighting. This example is from a tanning bed. Requires a lamp starter (below) and capacitor … Wikipedia
radiation measurement — ▪ technology Introduction technique for detecting the intensity and characteristics of ionizing radiation, such as alpha, beta, and gamma rays or neutrons, for the purpose of measurement. The term ionizing radiation refers to those… … Universalium
Superheterodyne receiver — A 5 tube superheterodyne receiver made in Japan around 1955 In electronics, a superheterodyne receiver (sometimes shortened to superhet) uses frequency mixing or heterodyning to convert a received signal to a fixed intermediate frequency, which… … Wikipedia
technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… … Universalium
Cathode — Diagram of a copper cathode in a galvanic cell (e.g., a battery). A positive current i flows out of the cathode (CCD mnemonic: Cathode Current Departs). A cathode is an electrode through which electric current flows out of a polarized electrical… … Wikipedia
Dr. Robotnik (American TV series and comic) — This article is about the American TV and comics incarnation of the character. For other versions, see Dr. Eggman, Dr. Robotnik (other media) or Dr. Robotnik (Sonic the Comic). Dr. Robotnik is a fictional antagonist in the Sonic the Hedgehog… … Wikipedia
Alcohol intoxication — Classification and external resources The Drunkenness of Noah by Michelangelo ICD 10 F … Wikipedia
Mercury arc valve — A mercury arc valve (mercury vapor rectifier) is a type of electrical rectifier which converts alternating current into direct current. Rectifiers of this type were used in electric motor power supplies for industry, in electric… … Wikipedia