![]() ![]() ![]() When Newton made up his mind that a rainbow contains seven colors, it was after a long history of considering the number seven important in the universe: seven musical notes, seven days of the weeks, and before the discovery of Neptune, seven planets. Normal wavelengths are, in short, bent to create a rainbow of colors that each culture bases its own perception of. Besides, a rainbow does not physically exist it is just a “distorted” reflection of the Sun’s light as it passes through raindrops, creating this amazing phenomenon. Before the 17 th century, people did not understand the rainbow phenomenon it was not until Rene Descartes recognized that light coming from the Sun passes through rain droplets and splits into various colors.Īctually, there is no definite number of colors in a rainbow every color mixes with other colors, as there are no boundaries between a color and another, making it impossible to differentiate. We owe the idea that rainbows consist of seven colors to Isaac Newton before that, many people believed rainbows showed only five colors and in Baltic countries, it was believed that a rainbow showed only two colors: red and blue. A rainbow displays seven colors-red, orange, yellow, green, blue, indigo, and violet-which are always displayed in this same order. “My heart leaps up when I behold A Rainbow in the Sky,” is how the English poet, William Wordsworth, described the effect of watching a rainbow on his mood in his poem My Heart Leaps Up. ![]()
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