Is the Tahrir Protest Expanding to More of Cairo?

Tweeting from Cairo yesterday was highly concentrated around Tahrir Square as mapped with our clima.me tool.

Today we can see that heavy tweets are still centered on Tahrir but have spread out in a larger area around central Cairo.  We can not yet ascertain if this is because of people coming to join Tahrir, the Tahrir protest expanding, people being forced to retreat from Tahrir or just more people using Twitter on mobile phones as the demonstration evolves.

But our guess is it is an expansion of the scale of the demonstrations and their intensity.