This element is a solid. Nickel is classified as a Transition Metal which are located in Groups 3 - 12 of the Periodic Table. Elements classified as Transition Metals are generally described as ductile, malleable, and able to conduct electricity and heat.
The man who invented the first ATM cash machine has died, aged 84, after a short illness. John Shepherd-Barron, cash machine inventor, dies Photo: BOBBY NELSON.
The Invention of the Polygraph. The lie detectorâor polygraph machineâwas first created by John Augustus Larson (1892-1965), a part-time employee of the Berkley Police Department who was earning his Ph.D. in physiology at the University of California at Berkeley.