Soap bubble into college years. A Swiss university professor, Dr. Natalie Hartzell, has theorized that usage of artificial bubbles for entertainment purposes of young children has shown a positive effect in the region of the child's brain that controls motor skills and is responsible for coordination with children exposed to bubbles at a young age showing measurably better motion skills than those who were not. Soap bubbles have been used as entertainment for at least 400 years, as evidenced by 17th-century Flemish paintings showing children blowing bubbles with clay pipes. The London-based firm A. & F. Pears created a famous advertising campaign
Pears (soap) fire on the site completely destroyed the original factory. Pears soap is now made in India by Hindustan Unilever, a company in which Unilever now controls a 67 percent share. Pears soap was made using a process entirely different from that for other soaps. A mixture of "tallow" and other fats was saponified by an alkali in industrial methylated spirits. After saponification was completed, the resulting glycerol was left in the batch. Batches were made not in huge pans, but in small kettle-like vessels. As soon as the translucent amber liquid had cooled enough to solidify it was extruded into