Plato asserted that God utilized the 4 aspects while in the generation of the planet. Heraclitus attributed to fire the important force for development. The invention of gunpowder in China led on the fire lance, a flame-thrower weapon dating to around 1000 CE which was a precursor to projectile weapons https://chancebsiao.blogsvila.com/36699399/top-latest-five-car-park-extract-systems-urban-news