1.Human beings have ears as their sound sensors .Actually they are filters designed for the audio frequencies.Their frequency response is similar to an LC filter with a specific bandwidth. 2.Eyes are filters designed to filter the light frequencies . 3.Skin is a touch sensor . 4.Nose a biological proximity detector. 5.Brain" a biological processor". 6.A great programme running on the brain which teaches it what to do & when.
Innovation is not the product of logical thought ,even though the final product is tied to a logical structure