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
Industrial style Industrial style Industrial style or industrial chic refers to an aesthetic trend in interior design that takes clues from old factories and industrial spaces that in recent years have been converted to lofts and other living spaces. Components of industrial style include weathered wood, building systems, exposed brick, industrial lighting fixtures and concrete. This aesthetic became popular in the late 2000s and remained popular in the 2010s. Industrial style can also be seen in the use of unexpected materials used in building. Shipping containers are now being used in architecture for homes and commercial spaces. The Industrial style of design