Profile: Foundations

/Profile: Foundations
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Mass Dampers

In addition to molecular vibrations, the concept of matching the natural frequency of an object with a driving frequency (resonance) has many applications.   Just like molecules, buildings (as well as all structures) have particular natural frequencies that depend on a structure’s size and rigidity. When an earthquake or winds drive the building at these special […]

  • Alessandro Volta

Alessandro Volta

Early studies of electricity mostly involved static electricity. For example in 1791 Luigi Galvani demonstrated that a dissected frog’s leg could be made to twitch if a nerve ending in the leg was put in contact with a conducting metal. He coined the term “animal electricity” to explain this phenomenon. From these and other early […]

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