By Andy Furman NKyTribune staff writer Doug Arington is full of hot air. Well, maybe not entirely hot air – mostly helium.

“Can I tell you the worst, Mylar balloons, you know those metal balloons that are filled with helium, that kids have at big events. “Instead of other balloons are latex, Mylar balloons are ...

It's a latex balloon filled with hydrogen or helium. As it goes up into the sky, the instrument that is attached will gauge all of the conditions. Once that balloon reaches a certain point, it bursts.

The Pro Football Hall of Fame Enshrinement Festival Grand Parade begins at 8 a.m. Aug. 2. Here's a guide to the parade.