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
John Ruskin (painting) John Ruskin (painting) John Ruskin is a painting of the leading Victorian art critic John Ruskin (1819–1900). It was painted by the Pre-Raphaelite artist John Everett Millais (1829–1896) during 1853–54. John Ruskin was an early advocate of the Pre-Raphaelite group of artists and part of their success was due to his efforts. The painting depicts Ruskin in front of a waterfall in Glenfinlas, Scotland. Ruskin and Millais spent the summer of 1853 together at Glenfinlas in the Trossachs. Ruskin was especially interested in the rock formations and undertook his own studies of these. The painting of Ruskin was started at