rainbows
A rainbow is one of our atmosphere's most exquisite and marvelous creations; "one of the most spectacular light shows observed on earth" (Ahrens, 1998). When a person views a rainbow, they are getting a personal light show that no other person can see as they do. Humphreys points out that:"Since the rainbow is a special distribution of colors (produced in a particular way) with reference to a definite point - the eye of the observer - and as no single distribution can be the same for two separate points, it follows that two observers do not, and cannot, see the same rainbow." (Humphreys, 1929).Of course, a camera lens will record an image of a rainbow which can then be seen my many people (Lynds, 1995). A rainbow is essentially made up of seven brilliant colors: red, orange, yellow, green, blue, indigo, and violet; moreover, it is comprised of many coloration that the eyes cannot see. No painter can manufacture the colors of the rainbow, for they create color by mixing, but no mixing will give red, green, or purple. These are the colors of the rainbow, though between the red and the green an orange color is often seen (Aristotle, 350 BC). To understand how the awesome production of a rainbow occurs is a f
Proverbs about rainbows predicting future weather have been around for centuries. When we view a morning rainbow, we are facing west, consequently, also towards the rain shower. When it rains, the droplets are never the same exact size and shape; thus, a rainbow occurs in a range of colors. At sunset and sunrise, the circle is smallest and the segment largest: as the sun rises higher the circle is larger and the segment smaller. In addition, to see a rainbow, or red sky, an individual has to be facing the rain and have the sun at your back. Some of the light strikes the back of the drop at such an angle that it is reflected within the drop, this is the critical angle of 48º. When sight becomes strained to a great distance, the appearance of the distant object is affected; it appears fainter; additionally, everything at a distance looks blacker, because sight does not reach it. In the winter, water droplets freeze into ice particles that do not produce a rainbow but scatter light in other very interesting patterns (Humphreys, 1929). When we view an evening rainbow, we are facing east and towards the rain shower.
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