As far as I know, the timeline can only be moved manually now. It will surely be improved in a later version!
What you could do also is contact directly the authors of the Egypt twitter visualization and ask them how they did! I'd be curious to know whether they moved the timeline "by hand" or used a more elegant solution.
Best,
ClementStatistics:Posted by seinecle — 12 Apr 2011 13:25
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