Boart Longyear samples for the proposed Golden Gate Bridge in San Francisco. In spite of the financial crisis, the 1930s saw improvements in diamond drilling technology, including the use of industrial-quality diamonds mined in Africa that were called “boarts.” In 1936, South Africa’s Anglo American Corporation formed Boart Products South Africa (Pty) Limited, which was later named Boart International. The new company developed the first mechanically-set diamond core bits, which were less expensive than the hand-set core bits that used more expensive Brazilian diamonds (carbonados). Longyear’s business gradually improved in the 1940s in response to expanding worldwide mineral exploration. In 1949, the
Language for specific purposes Thus, when trying to identify which approach being taken, the question is: "Is it English for Specific Purposes or English through specific content themes or content areas?" Language for specific purposes Language for specific purposes (LSP) has been primarily used to refer to two areas within applied linguistics: LSP can be used with any target language needed by the learners as a tool for specific purposes, and has often been applied to English (English for specific purposes, or ESP). A third approach, content or theme-based language instruction (CBI) has also been confused with LSP. These several uses of the label