ACCORDING to quantum mechanics, an oscillator possesses a definite zero-point energy of vibration, and an attempt has been made to express this result directly in terms of some general principle. It ...

Imagine plucking a guitar string. It vibrates, the sound lingers, and then fades away as the energy drains into the air. Now bring this scene down to the scale of an atom. Can an atom vibrate in the ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Somer G. Anderson is CPA, doctor of ...

A plucked guitar string can vibrate for seconds before falling silent. A playground swing, emptied of its passenger, will gradually come to rest. These are what physicists call "damped harmonic ...

Abstract: Precision spectroscopy of Th-229 and He+ ions, which requires coherent light sources in the vacuum ultraviolet (~ 148 nm) and extreme ultraviolet (~60 nm), can be effectively achieved using ...

Abstract: This paper analyzes the phase ambiguity problem of quadrature output type oscillator. Phase shift is being analyzed in detail for the application of oscillator. A phase shift and phase ...

Candle clocks were once an easy way to build a clock without using complex mechanical devices: just observe how quickly a thin candle burns down, mark an identical candle with periodic gradations, and ...

Wolfram Mathematica is math software that integrates numeric and symbolic computations, graphics, programming language documentation and connectivity to other applications, available for Windows, Mac ...

Matt Elliott is a senior editor at CNET with a focus on laptops and streaming services. Matt has more than 20 years of experience testing and reviewing laptops. He has worked for CNET in New York and ...