Rainbow number of colour bands of a rainbow may therefore be different from the number of bands in a spectrum, especially if the droplets are particularly large or small. Therefore, the number of colours of a rainbow is variable. If, however, the word "rainbow" is used inaccurately to mean "spectrum", it is the number of main colours in the spectrum. The question of whether everyone sees seven colours in a rainbow is related to the idea of linguistic relativity. Suggestions have been made that there is universality in the way that a rainbow is perceived. However, more recent research suggests that
The Rainbow Cadenza ... 'The Rainbow Cadenza' is imaginative and stylishly written, well worth its price for the moral questions it raises, even to those who are not science-fiction buffs. Schulman manipulates his words and characters much as the lasegrapher controls the colors and shapes of a composition. Each climaxes with a sign of hope: a rainbow." . The novel tells the story of Joan Darris, a laser art composer and performer, and her interactions with her society. The novel portrays a future nominally-libertarian world government, in which many social taboos of the middle-twentieth century have been eliminated—for instance, gay marriage, drug use,