Coal assay Coal assay Coal analysis techniques are specific analytical methods designed to measure the particular physical and chemical properties of coals. These methods are used primarily to determine the suitability of coal for coking, power generation or for iron ore smelting in the manufacture of steel. Coal comes in four main types or ranks: lignite or brown coal, bituminous coal or black coal, anthracite and graphite. Each type of coal has a certain set of physical parameters which are mostly controlled by moisture, volatile content (in terms of aliphatic or aromatic hydrocarbons) and carbon content. Moisture is an important property of
What Have We Learned, Charlie Brown? we learned, Charlie Brown?". The scene flashes back to him and Sally. She then tells him that he is pasting the pictures upside down. The special won a Peabody Award for "distinguished achievement and meritorious public service" in broadcasting. Schulz would later say of the acclaim, The special was released on VHS in 1996. The special is available for purchase on iTunes together with "You're Not Elected, Charlie Brown" and "He's a Bully, Charlie Brown", and is now available on DVD in the "Peanuts Emmy Honored Collection". What Have We Learned, Charlie Brown? What Have We Learned, Charlie Brown? A