Pipe Thread Types and Designations. Overview: Different types of screw threads have evolved for fastening, and hydraulic systems. Of special concern are plastic-. to-metal, taper/parallel threaded joints in hydraulic circuits.
The taut Mike Nichols drama Silkwood (1983) was based on the real life case of a plutonium processing plant metallurgy worker, Karen Silkwood (Meryl Streep), who discovered corporate powers were covering up radiation leaks at Oklahoma's Kerr-McGee plant.
About the movie: Epic the movie is loosely based on the book by William Joyce, The Leaf Men and the Brave Good Bugs. A lot of the characters are the same, but the plot was changed up so that there would be more action and adventure. In the story a young girl named Mary Katherine finds herself transported to a different world.