= Engineering
{wiki}
<Engineering> applies scientific knowledge, mathematical models and systematic design to create systems meeting practical requirements. A design problem combines objectives with constraints: a bridge must carry specified loads while satisfying <limits> on deformation, materials and cost. Analysis predicts behaviour, experiments test the predictions, and <manufacturing> choices determine what can be built consistently. <Mechanical engineering>, <electrical engineering>, <civil engineering> and <chemical engineering> emphasize different systems, but all connect an idealized model to measured performance and uncertainty in real components.
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