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Sedimentary rock
Sedimentary rock is one of the three main rock groups (along with igneous and metamorphic rocks) and is formed in four main ways: by the deposition of the weathered remains of other rocks (known as ... > more -
Jet engine
A jet engine is any engine that accelerates and discharges a fast moving jet of fluid to generate thrust in accordance with Newton's third law of ... > more -
Hydroelectricity
Hydroelectricity is electricity obtained from hydropower. Most hydroelectric power comes from the potential energy of dammed water driving a water turbine and generator. Less common variations make ... > more -
Battery electric vehicle
A battery electric vehicle (BEV) is an electric vehicle that utilises chemical energy that is stored in rechargeable battery packs. Electric vehicles use electric motors instead of, or in addition ... > more -
Water turbine
A water turbine is a rotary engine that takes energy from moving water. Water turbines were developed in the nineteenth century and were widely used for industrial power prior to electrical grids. ... > more
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