Traffic Density Analogy

The build-up of traffic behind a slow moving tractor provides an analogy to the density wave formation of spiral arms.

Running this animation on your computer...

1. right-click to download trafficdensity.swf and trafficdensity.html to the same directory
2. open the html file in a browser to run the animation

Linking to this animation...

1. copy and paste the code below into your webpage or blog:
   Text Link HTML:

   - or -   

   Image Link HTML:

Putting this animation on your website...

1. upload trafficdensity.swf to the same directory as your webpage
2. copy and paste the following code into your webpage:
   Embed HTML: