While the Fourth isn't till Tuesday, Philadelphia had its big fireworks show at Penn's Landing last night.

The way digital cameras photograph the trails left in the air by exploding fireworks is like nothing I ever saw in the days when I used conventional film.

The first photo shows the crowd watching the display, which is a considerable distance away. Yet in the photo, the trails seem to be in the foreground -- between the camera and the crowd (something I can't explain, but what you see is unedited).

I selected the shots I liked best, and here they are.

I had a great time, and so did the crowd.

And technically, it isn't even the Fourth of July yet, but Happy Fourth of July anyway!