The color blue does absorb heat. In general, the more light an object absorbs, the more heat absorbed since light is energy. Black absorbs the most heat. A black object absorbs all wavelengths of light and reflects none.
Parchment is a writing material made from specially prepared untanned skins of animalsâprimarily sheep, calves, and goats. It has been used as a writing medium for over two millennia. Vellum is a finer quality parchment made from the skins of kids, lambs, and young calves. It may be called animal membrane by libraries and museums that wish to avoid distinguishing between parchment and the more restricted term vellum (see below).
Paper History. The word paper comes from the ancient Egyptian writing material called papyrus, which was woven from papyrus plants. Papyrus was produced as early as 3000 BCE in Egypt, and in ancient Greece and Rome. Further north, parchment or vellum, made of processed sheepskin or calfskin, replaced papyrus, as the papyrus plant requires subtropical conditions to grow.