Plato asserted that God made use of the four aspects in the generation of the planet. Heraclitus attributed to fire the vital drive for generation. The creation of gunpowder in China led into the fire lance, a flame-thrower weapon dating to all around 1000 CE which was a precursor to https://car-park-extract-systems46678.59bloggers.com/36986143/indicators-on-car-park-extract-systems-you-should-know