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...
- right-click to download trafficdensity.swf and trafficdensity.html to the same directory
- open the html file in a browser to run the animation
Linking to this animation...
- copy and paste the code below into your webpage or blog:
Putting this animation on your website...
- upload trafficdensity.swf to the same directory as your webpage
- copy and paste the following code into your webpage: