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27 November 2013 12:59 pm ,
Vol. 342 ,
The new head of the National Center for Science Education promises to "fight the good fight" against attacks on...
Analyses of the H7N9 strains isolated from four new cases show that the virus is evolving rapidly, heightening anxiety...
In 2009, Jack Szostak shared a Nobel Prize for his part in discovering the role of telomeres, the end bits of...
Science has exposed a thriving academic black market in China involving shady agencies, corrupt scientists, and...
Paper-selling agencies flourish in the aura of reputable businesses. For some scientists, it may be difficult to tell...
Featuring the first lunar rover in 40 years, Chang'e-3 is seen as an important milestone on China's quest to send a...
Data collected by satellites and floating probes have chronicled a 2-decade rise in the temperature and thickness of a...
Cholesterol, the artery-clogging molecule that contributes to cardiovascular disease, has another nasty trick up its...
- 27 November 2013 12:59 pm , Vol. 342 , #6162
- About Us
Nickel for Your Thoughts
23 December 1999 7:00 pm
Today is the birthday of Axel Fredrik Cronstedt, a Swedish chemist born in 1722 who is best known for his discovery of nickel and his mineral classification scheme. In 1751, Cronstedt described a new mineral he called kupfernickel, or "demon copper," after the copper color of nickel ore. Many experts at the time, however, believed he had confused nickel with cobalt, and his findings were not confirmed until the early 1900s. Seven years after identifying nickel, Cronstedt published his "Essay on the New Mineralogy," in which he described four classes of minerals--earths, bitumens, salts, and metals. The work classified minerals according to chemical composition, rather than by the physical characteristics of color and hardness.