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).
Teflon tape or pipe dope. Tape should be used when dealing with plastic fitting mainly plastic male thread water fitting, reason being if you use pipe dope on plastic male threaded fitting for water supply, the dope tends to make the threads too slick causing overtighting of the fitting.ow we use a combo of teflon tape with pipe dope on all metalic male water fitting and pipe, this ensures it will have a possitive seal each and evreytime.