Mobile Phones
By STEPHEN HUTCHEON – SMH http://www.stuff.co.nz/technology/2396349/The-blood-diamonds-of-gadgets Tantalum is an rare metal with unique properties. Chief among these is that with a melting point of 2996 degrees Celsius, it’s a superlative thermal conductor. Almost two-thirds of the world’s tantalum production ends up in high-quality capacitors that are used in devices such as mobile phones and other [...]