It is usually the simplest expressions that take off like wildfire. Everyone's been talking this week about "double rainbows," based on a goofy home video recorded more than six months ago.
In early January, Paul Vasquez, also known as "Hungry Bear," spent an hour videotaping, and marveling at, a beautiful double rainbow at Yosemite National Park.
Some 3½ minutes of his "rainbowing" were caught on tape, and it's Vasquez's reaction to the rainbows -- not the rainbows themselves -- that's drawing viewers.

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