In chemistry, photocatalysis is the acceleration of a photoreaction in the presence of a catalyst. In catalysed photolysis, light is absorbed by an adsorbed substrate. In photogenerated catalysis, ...
Suction is the flow of a fluid into a partial vacuum, or region of low pressure. The pressure gradient between this region and the ambient pressure will propel matter toward the low pressure area. ...
Attempts of standardized temperature measurement have been reported as early as 170 AD by Claudius Galenus.[1] The modern scientific field has its origins in the works by Florentine scientists in t...
Moto-driven wheel
Road surface or pavement (American English) is the durable surface material laid down on an area intended to sustain vehicular or foot traffic, such as a road or walkway. In the past, gravel road s...
Metal treatment process
A power cable is an assembly of one or more electrical conductors, usually held together with an overall sheath. The assembly is used for transmission of electrical power. Power cables may be insta...
Dredging is an excavation activity or operation usually carried out at least partly underwater, in shallow seas or fresh water areas with the purpose of gathering up bottom sediments and disposing ...
A wheelchair is a chair with wheels, invented in the early 5th century. The device comes in variations where it is propelled by motors or by the seated occupant turning the rear wheels by hand. Oft...
A die is a specialized tool used in manufacturing industries to cut or shape material mostly using a press. Like molds, dies are generally customized to the item they are used to create. Products m...
A forming press, commonly shortened to press, is a machine tool that changes the shape of a workpiece by the application of pressure.[1]
Communication equipment for car doors
Ice (from the Old English "īs", in turn from the Proto-Germanic "isaz") is water frozen into a solid state. Depending on the presence of impurities such as particles of soil or bubbles of air, it c...
An ion (/ˈaɪən, -ɒn/)[1] is an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving the atom a net positive or negative electrical charge. ...
A shoe is an item of footwear intended to protect and comfort the human foot while doing various activities. Shoes are also used as an item of decoration. The design of shoes has varied enormously ...
Deodorizing device
An electric motor is an electric machine that converts electrical energy into mechanical energy. In normal motoring mode, most electric motors operate through the interaction between an electric...
A light source that doubles as a sensor
Image processing
