signalling apparatus
121Maglev — JR Maglev at Yamanashi, Japan test track in November 2005 …
122Osteoporosis — Classification and external resources A stooped back is often the result of osteoporosis. ICD 10 M …
123Plant cell — Plant cells are eukaryotic cells that differ in several key respects from the cells of other eukaryotic organisms. Their distinctive features include: * A large central vacuole, a sap filled volume enclosed by a membrane known as the tonoplast JA …
124Teleprinter — A teleprinter (teletypewriter, Teletype or TTY for TeleTYpe/TeleTYpewriter) is a now largely obsolete electro mechanical typewriter which can be used to communicate typed messages from point to point and point to multipoint over a variety of… …
125Uninterruptible power supply — A small free standing UPS …
126Alternating current — (green curve). The horizontal axis measures time; the vertical, current or voltage. In alternating current (AC, also ac) the movement of electric charge periodically reverses direction. In direct current (DC, also dc), the flow of electric charge …
127Cilium — Not to be confused with Psyllium. Cilium SEM micrograph of the cilia projecting from respiratory epithelium in the lungs Code TH …
128Aurelian — Infobox Emperor title =Emperor of the Roman Empire name =Aurelian full name =Lucius Domitius Aurelianus (from birth to accession); Caesar Lucius Domitius Aurelianus Augustus (as emperor) title =Emperor of the Roman Empire reign =September, 270… …
