These 10 animal facts will amaze you. Solar glass is a type of window and building material that is designed to block radiant heat transfer, which is basically the amount of heat from the sun that passes through the glass and into whatever space is on the other side.
Human skin color can vary from almost translucent to almost black. This range of colors comes from the amount and type of a pigment called melanin found in the skin. There are two types of melanin--eumelanin and pheomelanin. In general, the more eumelanin in your skin, the darker your skin will be. People who make more pheomelanin than eumelanin tend to have lighter skin with freckles. Like many other traits, the amount and kind of pigment in your skin is controlled by genes.
Cause of Vitiligo. Your skin is composed of three layers - the epidermis, the dermis and the subcutaneous tissue. The outermost layer of your skin is the epidermis. Melanin, the pigment that determines the color of your skin, hair and eyes, is produced in the epidermis. Melanin provides the coloring of your skin and helps protect it from damage from ultraviolet light.