The cornea and lens in the eye act as the camera lens. The retina is similar to the film. If the image is not focused properly, the film (or retina) receives a blurry image. The cornea also serves as a filter, screening out some of the most damaging ultraviolet (UV) wavelengths in sunlight.
Hardie plank siding is a premium brand of cement board siding (also known as fiber cement board siding) produced by the James Hardie Company.ardie plank can be purchased with a wood-grain look, a plain smooth look or a stucco type finish. Hardie plank also comes in simulated cedar shingle planks.
Hardie board is a type of siding constructed of cement fibers by James Hardie Building Products Inc. It is very durable and can withstand extreme weather conditions and insects. To cut this type of siding, use a masonry blade. Masonry blade types include abrasive materials or vented diamond blades that are used for dry cutting. The blades are designed to be used with most cutting tools, including circular, table and miter saws.