Why is it possible for bare feet to touch red-hot coals without getting burned?

Heat transfer from a red-hot coal is slow, but it still happens.

Take a red-hot coal from a nearby camp fire and drop it into the Koolaid.

In its place was a red-hot coal of anger, betrayal - arousal.

What I'd really like to do, though, is drag him face down over red-hot coals for a few weeks.

She seemed to be holding a red-hot coal in her hand.

The red-hot coal was still glowing in her hand.

The Goddess reached into the bed of the fire and drew out a single red-hot coal.

You don't know how many strange faces and different scenes I trace in the red-hot coals.

She had eaten red-hot coals, still had one in her hand.