Toeval – Jelle Maréchal

De brug stort in omdat de wind die waaide dezelfde frequentie had als de fysieke materiele frequentie van de brug. Allemaal ingewikkeld, maar toch toevallig dat die wind exact dezelfde frequentie haalt als de brug.

En, wat te zeggen van het feit dat de brug als gevolg ‘toeval-t’?

“The first Tacoma Narrows Bridge opened to traffic on July 1, 1940. It collapsed four months later on November 7, 1940, at 11:00 AM (Pacific time) due to a physical phenomenon known as aeroelastic flutter caused by a 67 kilometres per hour (42 mph) wind. The bridge collapse had lasting effects on science and engineering. In many undergraduate physics texts the event is presented as an example of elementary forced resonance with the wind providing an external periodic frequency that matched the natural structural frequency (even though the real cause of the bridge’s failure was aeroelastic flutter).”