Monday, 23 August 2010
Blame The Laws Of Physics
(If At First You Don't Succeed...)
Image: from TinyPic.com
Tags: Blame - Laws of Physics - Physics - Succeed
Posted by ALCHEssMIST - Alchemipedia - Cetacographer - Nirvana - Tags alliance.
Thursday, 15 July 2010
White noise is a random signal with a flat power spectral density. The term comes from the similar concept 'white light', in which the power spectral density of the light is distributed over the visible band such that the human eye's 3 colour cones are approximately equally stimulated.
Although it is impossible to generate a white noise signal over an infinite bandwidth, because of the infinite power required, 'white noise' is achievable over a defined frequency band.
Image credit - Omegatron (cc)
Tags: Bandwidth - Colour Cones - Infinite - Power - Random - Signal - Spectral Density - Vision - White Light - White Noise
Posted by the ALCHEssMIST-Alchemipedia-Cetacographer alliance.