Entertainment / Photography / Gum Bichromate: Contact printing process once very popular for the manipulative, impressionistic effects it makes possible. Drawing paper is coated with a mixture of gum, potassium bichromate and a pigment of any chosen color. This is then exposed to light behind a negative. Also known as the photo aquatint process.
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Science / Biology / Integumentary System: The skin and its derivatives (hair, nails, feathers, horns, antlers, and glands), which in multicellular animals protect against invading foreign microorganisms and prevent the loss or exchange of int MORE
Science / Biology / Integument: Something that covers or encloses, e.g., the skin. MORE