Mechanical resonance Mechanical resonance Mechanical resonance is the tendency of a mechanical system to respond at greater amplitude when the frequency of its oscillations matches the system's natural frequency of vibration (its "resonance frequency" or "resonant frequency") than it does at other frequencies. It may cause violent swaying motions and even catastrophic failure in improperly constructed structures including bridges, buildings and airplanes. This is a phenomenon known as resonance disaster. Avoiding resonance disasters is a major concern in every building, tower and bridge construction project. The Taipei 101 building relies on a 660-ton pendulum—a tuned mass damper—to modify the response at resonance.
Greater Netherlands either within the Netherlands or as independent state with strong links with the Netherlands. Many Orangists are Greater Dutch and vice versa, but not all Greater Dutch are monarchist Orangists, as some want to structure the state differently. Orangism has become more popular since 1980, when the term was used to refer to the Greater Netherlands projects, with a focus on the restoration of the Dutch royal family to the entire Dutch-populated part of the region. The popularity of the House of Orange-Nassau in Flanders is partly based on the francophile tendency of the Belgian monarchy. Contemporary Orangism in Flanders