Light fantastic
Feb 10, 2004
One of the reasons why rainbows are so special, as Robert Crease writes on page 16, is that they are rare, but not so rare that people are not familiar with them. Most readers of this magazine will have some inkling of how a rainbow is formed, but could you, if pushed to the test, derive what happens from first principles? And what about ice-crystal haloes, fog-bows and glories? Those who need to refresh their memory about any of these beautiful natural optical phenomena should turn to John Hardwick's article in "The subtlety of rainbows".
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