Warmth in the cold. Or the opposite. It can't go wrong. It's like pluss and minus, sweet and salt. It's chemistry. I'm talking about the feeling of warmth in a cold environment. In other words: Cold March air and frozen, white ground. You stand leaning up against the wall to stay sheltered from the breeze. Then one, tiny, warm sunbeam find its way through the clouds and hit you right in the face. You frown your eyes in surprise and wonder. What a feeling! What a warmth! Can