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.
While wood lap siding is traditional, it's also possible to find cement, vinyl, and engineered wood products such as HardiePlankÂ® used for siding. These products can be more environmentally friendly because they are not made with virgin wood, and they can also be more durable than traditional wood siding products.