In the paper - Fourth Generation Nuclear Weapons: Military effectiveness and collateral effects - written by Andre Gsponer, the director of the
Independent Scientific Research Institute in Geneva Found at :
www.citebase.org...
Page 14
In the case of nuclear explosives the situation is more complicated because the different kinds of radiations can have a variety of effects,
especially if they are very penetrating, as is the case for high energy neutrons and gamma rays. The most important of these effects are as follows:
**** Heat the volume of a material. Penetrating high energy radiations neutrons, pions,15 or high energy gamma rays)will easily cross a low density
intervening medium such as air and deposit their energy deep into any high density material. As a result, a substantial (i.e., centimeter to meter
thick) layer of a bomb irradiated material can be brought to a temperature sufficiently high for it to melt, vaporize, or even explode. ****
That is a very very good explanation of why car engine blocks were catching fire, while the backs of the cars were not (not enough metal mass to
absorb the high energy radiations.
Why the one truck ignited, and the others did not - the only reasonable explanation I would surmise is that it may have been sheltered by the mass of
the building right beside it, note the little ticket writing vehicle directly behind it was not affected as well. To support that claim you would
have to know a down-looking line of site. Did the one buildings mass 'shadow' and protect that truck??
Secondly you also have to note 'rope tricks' which were photographed by a Rapatronics Camera in a Nuclear detonation. If you observer the blast
wave it is highly unsymmetrical. It would lend reason why some cars were untouched while others beside them were melted.
en.wikipedia.org...:Tumbler_Snapper_rope_tricks.jpg
I would also high suspect that as cars burned they usually just plain burn up the cars around them too.
The other thing I would note is that there is a bus directly behind the photos which half melted as well, which would work against the 'line of
sight' theory.
I can only surmise that clearly thermate would NOT have melted a bus at huge distance of 200 yards from the crash site, and possibly this is just a
theory that postal truck maybe was driven there AFTER the detonation. In the one photo you can see what looks like a a police vehicle that is in
front of the leading burned up postal vehicle.
Other than that I would have to seriously toss in the towel, maybe look back in the direction of 'space beam weapons' or something like that.