Answer:
Claude Monet
Explanation:
it started in the 1860s when Monet and some artists painted stuff and their paintings featured the absence of idealism. yeah I know the explanation is umph but its definitely Claude Monet. Pierre Renoir and Edgar Degas where two popular impressionist painters and also started the movement but Claude Monet is pretty much the forefront for it.
Answer:
Glass is the most common material used to construct lens elements, due to its good optical properties and resistance to scratching. Other materials are also used, such as quartz glass, fluorite, plastics like acrylic (Plexiglass), and even germanium and meteoritic glass.
