Thomas Edison. Thomas Alva Edison (February 11, 1847 â October 18, 1931) was an American inventor and businessman, who has been described as America's greatest inventor. He developed many devices that greatly influenced life around the world, including the phonograph, the motion picture camera, and the long-lasting, practical electric light bulb.
Pipe dope, or pipe joint compound, is a gooey compound used to seal the connection between threaded pipes and fittings. Because the threads in pipes and fittings still leave an air gap between the two surfaces, the gap must be filled to make it water tight (or gas tight for gas lines).
IPS sized HDPE pipe has the same outside diameter as black iron. or carbon steel pipe. DIPS sized HDPE has the same outside diameter as cast/ductile iron pipe. Typically, ductile iron pipe sizes are available from 4- inch to 36-inch diameters. Iron pipe sizes are. available from Â¾- inch to 65-inch diameters. Q. 3 Is small diameter HDPE pipe and tubing available in both iron pipe size inside diameter.