Can anyone list periodic events?

(periodic events happen in a constant rate)

Can anyone list periodic events?comedy club

The ICE AGE actually pertains to this question of Periodic Events (click on below link)

http://zebu.uoregon.edu/2002/ph123/lec15...

The art of TIME-KEEPING is listed below -

Time and Frequency Standards

All time and frequency standards are based on a periodic event that repeats at a constant rate. The device

that produces this event is called a resonator. In the simple case of a pendulum clock, the pendulum is the

resonator. Of course, a resonator needs an energy source before it can move back and forth. Taken

together, the energy source and resonator form an oscillator. The oscillator runs at a rate called the

resonance frequency. For example, a clock鈥檚 pendulum can be set to swing back and forth at a rate of

once per second.Counting one complete swing of the pendulum produces a time interval of 1 s.Counting

the total number of swings creates a time scale that establishes longer time intervals, such as minutes,

hours, and days. The device that does the counting and displays or records the results is called a clock.

Table 17.3 shows how the frequency uncertainty of a clock鈥檚 resonator corresponds to the timing uncer-

tainty of a clock.

Throughout history, clock designers have searched for more stable resonators, and the evolution of

time and frequency standards is summarized in Table 17.4. The uncertainties listed for modern standards

represent current (year 2001) devices, and not the original prototypes. Note that the performance of

time and frequency standards has improved by 13 orders of magnitude in the past 700 years, and by

about nine orders of magnitude in the past 100 years.

See This Link

http://64.233.169.104/search?q=cache:FYE...