Quote:
Originally Posted by MediaGuy
Well that's the whole point of steel frame building construction - they don't topple, they're made of thicker, stronger constituents at the bottom than at the top, and they're embedded so firmly in the ground that even a great earthquake only makes them oscillate.
:D
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Not true! All tall buildings oscillate. The Taipei 101 Skyscraper for example has a 700 Ton Ball inside it that moves as the building sways due to wind, tremors and other harmonic vibrations, and acts as a damper that absorbs that energy away from the structure of the building itself. This is usually called the "Tuned Mass Damper".