A 9/11 Truth: Evidence of Energetic Materials in the Debris of the Collapsed World Trade Center Towers

A 9/11 Truth: Evidence of Energetic Materials in the Debris of the Collapsed World Trade Center Towers

By David L Griscom
Published: September 11, 2010

Inspired by David Ray Griffin’s recent web publication “Left-Leaning Despisers of the 9/11 Truth Movement: Do You Really Believe in Miracles?” (selected parts of which can be found in my previous post) I will discuss below the results of two superb scientific investigations found in the open literature:

I. The U.S. Geological Survey (USGS) report of flyovers of the site of the World Trade Center (WTC) five and twelve days after the 9/11/01 attacks to record Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) remote sensing data (see figure above).

AVIRIS is a National Aeronautics and Space Administration (NASA) remote sensing instrument that measures upwelling spectral radiance in the visible through the infrared, specifically, for wavelengths from 0.37 to 2.5 micrometers. In response to requests from the EPA through the U.S. Geological Survey (USGS), NASA flew AVIRIS on a small aircraft over lower Manhattan at mid-day on Sept. 16 and again in Sept. 23, 2001. Only the Sept. 16th results are shown in the figure above. These are false-color images, wherein the orange and yellow areas represent hot spots on the surface of the WTC debris (and the dark areas that are not water are shadows).

By use of the spectral data for the entire range of wavelengths, the USGS data analysis team was able to correct for reflected sunlight – and also determine the temperatures and sizes of hot objects smaller than the size of the pixels, which are about 6 by 6 feet. I have placed at the bottom of the figure a table of their results for hotspots A through H in degrees Centigrade.

Continued. . .