Heat sensitive

I do not intend to make a routine of photographing ladies' fingernails. But I am discovering a world about which I know very little.

Because of her profession nail polish does not really feature in my wife's life.

So it was a surprise to me that apart from glitter (which I was aware of) I had not realised that nail polish could be heat sensitive as was on the fingers of one of the team.

From a deep purple the colour changes to pink as the body warms up.

So much to learn!