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
William Pears Group William Pears Group William Pears Group is one of Britain's largest property companies, with £6 billion of property in London and south-east England. The William Pears Group was founded in 1952, by Bernard Pears (who changed his name from Schleicher on emigrating from Austria) and his son Clive Pears. It is run by Mark Pears with his younger brothers Trevor and David. According to "The Daily Telegraph", Mark Pears is a director of 212 companies, a "complex labyrinth of operating and investment companies", but won't say which is the main holding company or what the group's annual profit is. William