Suddenly a flash of fur, a low growl, and a leopard sprung across our path, leaping atop a hulking solitary boulder.

BBC: The Serengeti in the off-season

Most Americans are more concerned about the games on their iPhone, the NFL labor strike, and assorted other bread and circuses, than the very real prospect that our 235-year-long narrative of increasing dominance could be suddenly over in a flash should we default or come close to defaulting on our debt.

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The conversation was over in a flash, but I suddenly felt quite different about Al Gore.

WSJ: Excerpt: From the Letters of George H.W. Bush

"Suddenly, we saw in the distance a strong and intense flash of white light, which followed a descending and vertical trajectory and which broke up in six seconds, " the captain wrote.

CNN: Brazilian air force says debris was not from Air France crash

Suddenly, AB de Villiers watched at one end as everybody from number five onwards came and went in a flash with Mitchell Johnson (3-58) cutting a swathe through the lower order.

BBC: Australia end series on high note

They tackled problems like "flash crowds" (which can overwhelm computers storing a Web page or videoclip that suddenly is popular around the world) and the "fat file paradox": Why does data traveling at the speed of light often take such a long time to make it across the country?

FORBES: Magazine Article

The show centers around flash mobs, the phenomenon when a bunch of seemingly random people in a public place suddenly start putting on a coordinated dance show. (For an example see a clip from Modern Family at the bottom of this post.) Fox will premier the show as a special on March 31st after American Idol.

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