electrical heater
41Apollo 13 — Infobox Space mission mission name = Apollo 13 insignia = Apollo 13 insignia.png stats ref = cite web |url=http://history.nasa.gov/SP 4029/Apollo 00g Table of Contents.htm |title= Apollo by the Numbers: A Statistical Reference (SP 4029)… …
42Mica — For other uses, see Mica (disambiguation). Rock with mica …
43Motor controller — A motor controller is a device or group of devices that serves to govern in some predetermined manner the performance of an electric motor.[1] A motor controller might include a manual or automatic means for starting and stopping the motor,… …
44List of vacuum tubes — This is a list of vacuum tubes or thermionic valves. Before the advent of semiconductor devices, hundreds of tube types were used in consumer and industrial electronics; today only a few types are still used in specialized applications. Contents… …
45Stirling engine — Alpha type Stirling engine. There are two cylinders. The expansion cylinder (red) is maintained at a high temperature while the compression cylinder (blue) is cooled. The passage between the two cylinders contains the regenerator …
46Opportunity rover — (MER B) Opportunity in April 2003 Operator NASA Mission type Rover …
47Hybrid Synergy Drive — Hybrid Synergy Drive, (HSD) is a set of hybrid car technologies developed by Toyota and used in the company s Prius, Highlander Hybrid, Camry Hybrid, Lexus RX 400h, Lexus GS 450h, and Lexus LS 600h/LS 600hL automobiles. It is also used in the… …
48Arc-fault circuit interrupter — An arc fault circuit interrupter (AFCI) is a circuit breaker designed to prevent fires by detecting non working electrical arcs and disconnect power before the arc starts a fire. The AFCI should distinguish between a working arc that may occur in …
49Furnace — For other uses, see Furnace (disambiguation). Industrial Furnace from 1907 A furnace is a device used for heating. The name derives from Latin fornax, oven. In American English and Canadian English, the term furnace on its own is generally used… …
50Havells — India Ltd. Type Public (BSE: 517354) Industry Electrical p …
