It has about one-third the density and stiffness of steel; it is ductile and can be easily machined. Naturally, pure aluminum reacts readily with oxygen in air creating a thin barrier oxide layer known as the aluminum oxide next to the metal surface that is about 2-3 nanometers thick.
Orange skin resulting from excessive carrot consumption sounds like something out of a science fiction novel or a bizarre comedy. However, the fact is that yellow skin pigmentation resulting from increased beta-carotene levels in the blood is a real clinical condition called carotenemia. Though carotenemia is harmless, it's easy to confuse with jaundice in young children.
1 Certain foods you eat. 2  Food you eat will give you a better clue of what your orange poop means. 3  Foods like carrots, turnip greens, sweet potatoes, winter squash which contain beta carotene, or any other food that have artificial yellow orange coloring can give you orange colored poop. 4  Gallstones.