There are also winds that blow from the north, southwards and also those from the south blowing northwards. Anemometers. Anemometers measure the direction of winds. They come in different models but use a similar principle â cups on a bar! It simply works like this: the faster the wind, the faster the cups rotate. The speed of the rotating cups is measured by a speedometer. Another instrument in wind measurement is the wind vane. It involves a pointer mounted on a vertical shaft. When the wind blows, the arm sways until the pointer faces the direction of the wind. These days, there are some really cool technology that meteorologists use to measure air pressure, speeds and direction.
Bistability is widely used in digital electronics devices to store binary data. It is the essential characteristic of the flip-flop, a circuit widely used in latches and some types of semiconductor memory. A bistable device can store one bit of binary data, with one state representing a 0 and the other state a 1.n the mathematical language of dynamic systems analysis, one of the simplest bistable systems is. This system describes a ball rolling down a curve with shape, and has three steady-states: , , and. The middle steady-state is unstable, while the other two states are stable.
The effects of resonance are countered by installing tuned mass dampers, or harmonic absorbers. These devices specialise in moving in opposition to the resonance frequency oscillations in a structure using springs, fluid or pendulums. The worldâs largest tuned mass damper is a 660-ton pendulum in the Taipei 101 tower in Taiwan.