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) breaks down to an addition of artificial colouring and substances whose hypothetical function is either as detergents (i.e., cleaning substances) or stabilisers (i.e., product longevity enhancers). However, even the pre-2009 formula was a far cry from the original one. The latter was completely free of industrial cleaners, free of synthetic colours and (apparently) free of synthetic odorants, whose place was occupied by natural herbal fragrances. However, one unknown in the original formula is the "Pears fragrance essence": because of it, the customer cannot be certain whether the "new" fragrant compounds are indeed all new—or simply formerly unlisted items. During production