For other uses, see Engine (disambiguation).
"Motor" redirects here. For other uses, see Motor (disambiguation).
A V6 internal combustion engine from a Mercedes car
An engine or motor is a machine designed to convert one form of energy into mechanical energy.12 Heat engines, including internal combustion engines and external combustion engines (such as steam engines), burn a fuel to create heat, which then creates a force. Electric motors convert electrical energy into mechanical motion; pneumatic motors use compressed air and others?such as clockwork motors in wind-up toys?use elastic energy. In biological systems, molecular motors, like myosins in muscles, use chemical energy to create forces and eventually motion.
Organic oils - Wikipedia
Organic oils are produced in remarkable diversity by plants, animals, and other organisms through natural metabolic processes. Lipid is the scientific term for the fatty acids, steroids and similar chemicals often found in the oils produced by living things, while oil refers to an overall mixture of chemicals. Organic oils may also contain chemicals other than lipids, including proteins, waxes (class of compounds with oil-like properties that are solid at common temperatures) and alkaloids.
Lipids can be classified by the way that they are made by an organism, their chemical structure and their limited solubility in water compared to oils. They have a high carbon and hydrogen content and are considerably lacking in oxygen compared to other organic compounds and minerals; they tend to be relatively nonpolar molecules, but may include both polar and nonpolar regions as in the case of phospholipids and steroids
Car Parts to rare cars
If we have a very rare car certainly our car can be the object of envy from friends, family or even strangers. Often, however, it can happen that a limited edition produced cars very hard to find the right car parts. Currently the easiest special parts can be found for example on the Internet, due to the fact that recently there are extremely many sites advertising of this kind offers. The problem may also occur with the installation of such parts, because not every mechanic to take orders for all cars. Such problems are best to consider when choosing a car already.