How Will We Know Trump’s Inaugural Crowd Size?
It involves satellites and weather balloons.
On Friday, hundreds of thousands of people made their way to downtown Washington, D.C., to celebrate the inauguration of Donald Trump. The next day, thousands more will make the same journey for the Women’s March on Washington.
In the days following both events, the press will report their total attendance. But how will journalists know how many people attended?
Crowd counters rely on a few methods. For the inauguration, they will likely use a single aerial photo of the crowd, captured by a helicopter or satellite. Experts will augment their knowledge of how many people can fit into a space with some
