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.
The Silk Road was an ancient network of trade routes that extended across Europe and Asia, linking powerful civilizations such as China and Rome. The Silk Road flourished from about 1500 B.C. to A.D. 1500 and extended from China through Central Asia to the Caspian and Black Seas.ilk actually composed a relatively small portion of the trade along the Silk Road. Eastbound caravans brought gold, precious metals and stones, textiles, ivory, and coral; while westbound caravans transported furs, ceramics, cinnamon bark, rhubarb, and bronze weapons.