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
Sharps waste sharps waste, and the cost of newer disposal technology makes them unlikely to be used. As with the rest of the world injection wastes make up the largest portion of sharps waste. However, injection use is much more prevalent in this world segment. One of the contributors to this increase is a larger emphasis placed on injections for therapeutic purposes. It has been estimated that 95% of all injections in developing regions are for therapeutic purposes. The average person has been estimated to receive up to 8.5 injections per year. Newly developed injection technologies are rarely used to provide these