[Jewelry making - Article 00731] - Re: [Orchid] Balls at the ends

[Dave Arens]

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Hi Rahul,

>        Why does the tip of a gold wire turn into a ball when heated 

    I'm not a metallurgist or a physicist, but I'll hazard a guess. 

    A sphere is the most efficient form (volume per surface area) for
    containing a given material. 

    The cohesive properties of the molten metal are such that they
    prevent a small to modest sized molten mass from dropping from the
    solid wire. The force of nature trying to be as efficient as
    possible, causes the molten metal to form into the sphere shaped
    ball. 

Dave

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