programed guidance
1MGM-31 Pershing — Pershing was a family of solid fueled two stage medium range ballistic missiles designed and built by Martin Marietta to replace the Redstone missile as the United States Army s primary theater level weapon. The Pershing systems lasted over 30… …
2History of virtual learning environments — A virtual learning environment (VLE) is a system that creates an environment designed to facilitate teachers in the management of educational courses for their students, especially a system using computer hardware and software, which involves… …
3Environmental chamber — Example of temperature/humidity chamber. An environmental chamber is an enclosure used to test the effects of specified environmental conditions on biological items, industrial products, materials, and electronic devices and components.… …
