Colours of A Soap Film
The iridescent colours of a soap film are caused by interfering of (internally and externally) reflected light waves, a process called thin film interference and are determined by the thickness of the film. This phenomenon is not the same as the origin of rainbow colours (caused by the refraction of internally reflected light), but rather are the same as the phenomenon causing the colours in an oil slick on a wet road.
Read more about this topic: Soap Film
Famous quotes containing the words colours of, colours, soap and/or film:
“So different are the colours of life, as we look forward to the future, or backward to the past; and so different the opinions and sentiments which this contrariety of appearance naturally produces, that the conversation of the old and young ends generally with contempt or pity on either side.”
—Samuel Johnson (1709–1784)
“The sounding cataract
Haunted me like a passion: the tall rock,
The mountain, and the deep and gloomy wood,
Their colours and their forms, were then to me
An appetite: a feeling and a love,
That had no need of a remoter charm,
By thought supplied, or any interest
Unborrowed from the eye.—”
—William Wordsworth (1770–1850)
“I’ve finally figured out why soap operas are, and logically should be, so popular with generations of housebound women. They are the only place in our culture where grown-up men take seriously all the things that grown-up women have to deal with all day long.”
—Gloria Steinem (b. 1934)
“This film is apparently meaningless, but if it has any meaning it is doubtless objectionable.”
—British Board Of Film Censors. Quoted in Halliwell’s Filmgoer’s Companion (1984)