Dr. Grabbe's marvelous WTC-collapse lecture

Click on this link to play the audio recording of the lecture (give it half a minute to load up, and then you'll see a little > in the lower-right corner of the file icon - this will simply play the lecture rather than taking the time to download it, although the latter would be recommended if you's like to follow along in shorter sessions), and then click here to display the slides in order, sequentially from 00 to 55, except where Dr. Grabbe gives a specific slide number.

Taking the time to do this will make you much better prepared to answer any question about the collapse of the WTC towers!

Enjoy!

- Runyan