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) of which contained arsenic or lead) that were in general use at the time. Pears began to experiment with soap purification and eventually managed to produce a gentle soap based on glycerine and other natural products. The clarity of the soap gave it a novel transparent appearance which provided a marketing advantage. To add to the appeal, Pears gave the soap an aroma reminiscent of an English garden. During the nineteenth century, Pears built a large market for its soap in the United States. In 1835 when his grandson, Francis Pears, joined the business the firm was renamed A &