Soap bubble for its soaps in 1886 using a painting by John Everett Millais of a child playing with bubbles. The Chicago company Chemtoy began selling bubble solution in the 1940s, and bubble solution has been popular with children ever since. According to one industry estimate, retailers sell around 200 million bottles annually. A bubble is made of transparent water enclosing transparent air. However the soap film is as thin as the visible light wavelength, resulting in interferences. This creates iridescence which, together with the bubble's spherical shape and fragility, contributes to its magical effect on children and adults alike. Each colour
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