progress is not linear <br />everything is not <br />based on all known before <br /> <br />quantum leaps <br />eureka moments <br />spice scientific <br /> <br />discoveries <br />wave oscillations <br />sine waves <br /> <br />pendulum sways <br />periodic motions <br />propagate changes <br /> <br />equilibrium vibration <br />earth violent quakes <br />balances tectonic plates <br /> <br />physical systems <br />biological systems <br />human societies <br /> <br />civilizations empires <br />expand contract <br />rise fall cyclic changes<br /><br />Terence George Craddock (Spectral Images and Images Of Light)<br /><br />http://www.poemhunter.com/poem/nature-impacted-civilizations/
