May 2011
all work and no play.: 7 Rare Rainbow Formations →
thegrownupkid:
Circular rainbows: Most of the rainbows we see are actually arcs of perfect circles (with, accordingly, radii of exactly 42 degrees).
Secondary rainbows: Primary rainbows are often accompanied by secondary rainbows that are usually thinner and dimmer than the main rainbow. They…
April 2011
