Methods Hertzian contact technique with WC spheres was used to investigate the response of feldspathic dental porcelain to cyclic fatigue.

I speak quite often to groups of 10-20 people in Toastmasters. When I use this technique to make eye contact as I scan the room, I pause just long enough to build rapport with each audience member.

The firm has dropped clues to the technique by revealing that the chocolate melts as a result of contact with enzymes in saliva, rather than the warmth of our mouths.