[5] Engraving on bone and ivory is a crucial technique for your Art on the Higher Paleolithic, and larger engraved petroglyphs on rocks are located from several prehistoric intervals and cultures around the globe. Goltzius and his pupils and followers represent the last heroic age of engravin

Afterwards, Fresnel independently worked out his have wave theory of light and offered it to your Académie des Sciences in 1817. Siméon Denis Poisson added to Fresnel's mathematical function to create a convincing argument in favor from the wave idea, assisting to overturn Newt