"The key difference between our model and previous models is that we include heat exchange between water flowing through the ice sheet and the ice," said Rajaram.

“我们的模型和以前模型之间主要的区别是，我们将流经冰盖的水和冰之间的热交换也考虑在内，”拉贾拉姆说。

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Rajaram, who previously worked on AdSense at Google, says Facebook has no current plans to do so.

FORBES: Social Advertising Now On Majority Of Facebook Page Views

Instead, Facebook is focusing on how to improve ad formats and metrics and measurement on Facebook proper, Rajaram says.

FORBES: Social Advertising Now On Majority Of Facebook Page Views

Those fans were able to give more samples away to their friends, which drove viral interest in the product, Rajaram says.

FORBES: Social Advertising Now On Majority Of Facebook Page Views