mechanically
51List of alternative Dungeons & Dragons classes — This is a list of alternative base character classes to the Dungeons Dragons role playing game. As base classes rather than prestige classes, they can be taken by newly created characters without need for any prerequisites. Contents 1 1st edition …
52Zinc–air battery — specific energy 470 (practical),1370 (theoretical) Wh/kg[1][2] (1.692, 4.932 MJ/kg) energy density 1480 9780 Wh/L[c …
53Diesel engine — Diesel engines in a museum Diesel generator on an oil tanker …
54Gas turbine — Microturbine redirects here. For turbines in electricity, see Small wind turbine. For turbines driven by the flow of gas, see Turbine. A typical axial flow gas turbine turbojet, the J85, sectioned for display. Flow is left to right, multistage… …
55Non-volatile memory — Computer memory types Volatile RAM DRAM (e.g., DDR SDRAM) SRAM In development T RAM Z RAM TTRAM Historical Delay line memory Selectron tube Williams tube Non volatile …
56Electron beam tomography — (EBT) is a specific form of computed axial tomography (CAT or CT) in which the X ray tube is not mechanically spun in order to rotate the source of X ray photons. This different design was explicitly developed to better image heart structures… …
57Tanks in World War II — This article deals with the history of the tank in World War II.Overview Tanks played a huge role in World War II. The tank reached new heights of capability and sophistication. The early tanks of Germany were technologically inferior to many of… …
58Fairground organ — A fairground organ (or band organ (U.S.)) is a pipe organ designed for use in a commercial public fairground setting to provide loud music to accompany fairground rides and attractions. Unlike organs intended for indoor use they are designed to… …
59Chevrolet Volt — Manufacturer Chevrolet division of General Motors Also called Holden Volt Opel Ampera Vauxhall Ampera …
60Human-powered equipment — A mechanically powered flashlight. This uses a linear generator and is charged by shaking along its long axis …
