It happened that one day the cold was drier than ever before. People walking in the snow left a luminous trail behind them, and a snowball thrown against an obstacle gave a flare of light like a loaf of sugar cut with a knife. In the dusk of the evening, as I stroked Macak's back, I saw a miracle that made me speechless with amazement. Macak's back was a sheet of light and my hand produced a shower of sparks loud enough to be heard all over the house. My father was a very learned man; he had an answer for every question. But this phenomenon was new even to him. "Well," he finally remarked, "this is nothing but electricity, the same thing you see through the trees in a storm." more »