VOLKER STEGER / SCIENCE PHOTO LIBRARY VOLKER STEGER / SCIENCE PHOTO LIBRARY
Engine research. Engineer with test equipment for conducting research into combustion in car engines. The cylinder of the engine (at lower left) is partially made of glass so that the combustion process can be observed whilst the motor is running. Images of the combustion (displayed on computer screen) can be recorded and analysed. Fuel is introduced into the cylinders of car engines as a fine mist. If this is thoroughly mixed with the correct amount of air, the combustion can be rapid and efficient. The ratio of air to fuel can also affect the amount of pollutants produced. Photographed at Gottingen University, Germany.
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