Tungsten's very high melting point made it an ideal filament for incandescent light bulbs, & as it is in some enzymes it is the heaviest element used in nature, says Allan Blackman from AUT in ep 91 of Elemental.

Tungsten is the metal with the highest melting point and this made it an ideal filament for incandescent light bulbs.

It also has the highest tensile strength of any metal.

It occurs in some enzymes (in a few bacteria and archaea only), making it the heaviest element used in nature, says Professor Allan Blackman from the Auckland University of Technology, in episode 91 of Elemental.

Go to this episode on rnz.co.nz for more details