Cracking sounds and sparks may be produced when we put on and remove sweaters throughout the course of our daily lives. This may be because sweaters are made of wool, which can catch fire easily. If we give our hair a vigorous rub during the winter, it will fall out in clumps if we do it, but if we don't do it, it will fall out individually. The presence of static electricity can be observed in...

Cracking sounds and sparks may be produced when we put on and remove sweaters throughout the course of our daily lives. This may be because sweaters are made of wool, which can catch fire easily. If we give our hair a vigorous rub during the winter, it will fall out in clumps if we do it, but if we don't do it, it will fall out individually. The presence of static electricity can be observed in...