What are facts on cobalt?

The Swedish chemist, George Brandt, discovered Cobalt in 1739 while he was trying to disprove the contemporary belief that the element Bismuth had the ability to color glass blue

Stellite alloys (containing Chromium, Cobalt, and Tungsten) are used in the production of high-speed, high-temperature cutting tools because of Cobalt's high melting point and strength under high temperatures.

Other alloys containing Cobalt are used in the production of gas turbines and jet engines.

Cobalt's radioactive isotope, Cobalt-60 (half-life of 5.27 years), is a source of gamma rays. It can be used in some forms of cancer treatment and as a medical tracer.

Cobalt usage in rechargable batteries increased from 22% in 2006 to 25% in 2007 which accounts for the fastest growing use of the metal.

Global Cobalt consumption in 1995 was 24,000 tonnes and in 2008 that number increased to 60,800 tonnes. That is a 7.4% increase in a span of 13 years and if demand continues it is projected that this number will grow to 72,500 tonnes in 2011

The most common uses of Cobalt are in Magnets, Ceramics, Magnetic alloys, Cobalt boats, Glassware, Catalysts for the petroleum and chemical industries, Steel-belted radial tires and it is also used in radiotherapy
Obtained from sulfur, arsenic, oxygen, cobaltine

The Cobalt -60, dispersed as nuclear fallout, creates what is sometimes called a dirty bomb or cobalt bomb, once predicted by physicist Leó Szilárd as being capable of wiping out all life on earth.