"Directed Energy Weapons" refer to any number of types of unconventional and exotic weaponry.
The full range of these weapons is classified information, so no attempts will be made to distinguish between categories within the realm of energy weapons, as doing so would imply specific knowledge of all that are available.
In addition, no claim is be made about whether the directed energy weapon operates from a space-, air-, or ground-based platform, nor are any claims made about whether or not it involves sound waves, antimatter weapons, scalar weapons, a facility like HAARP, etc.
However, the evidence appears consistent with the use of energy weapons that go well beyond the capabilities of conventional explosives.
Wikipedia article on Directed-Energy Weapons
Although speculation about DEWs on 9/11 began shortly after the event, one of the first scientists with relevant credentials to publicly propose the DEW hypothesis was Dr. Judy Wood, a former professor of mechanical engineering.
The following material is largely from her book Where Did the Towers Go?, as well as from her old and new websites.
Where Did the Towers Go?
I. 9/11 Enigmas
II. New Nomenclature
Ongoing Reaction
As of 2007, they were still changing dirt.
They officially said all fires were out at the 99-day mark. Why is this truckbed and tailgate fuming in March, 2002?
Ground zero fuming
Fuming
Cotton candy
Near the bottom of GZ, it's a swamp, but is still fuming.
June 2006, looking north in the big bathtub. The new WTC7 is in the distance, on the right. This "puff-ball poofing" is why they need the dirt.
September 2006 - Where did that dirt come from?
September 2007 - Why are they taking dirt out?
Ground Zero in October 2007. Where did all of the rich-brown dirt come from? Certainly it was not dug up.
In October 2007, there was a fresh new pile of dirt. It could have been potting soil or topsoil. Why was it here? If this construction was for the foundation of a new building, what is the dirt for?
3 days later, the dirt pile was gone.
Yellow rubber hazmat suit? It's about 75°F, clear blue sky. Why the mutual hose-down job?
Why is this guy wearing a rubber hazmat suit?
Why is this inspection being done with white hazmat suits? This is the region where the old PATH terminal was.
Here you can see the ongoing rapid rusting of these beams.
The infected beams are removed.
Bankers Trust Building on Liberty Street, across from WTC2
Photo from soon after 9/11 - WTC2
This is Bankers Trust being taken apart. Recognize any "rustification" out there? There seems to be a trend for where the really furry-looking rust is. (WTC2 was across the street, to the right of where the first photo was taken.) That red furry-looking beam is incredible! How many years at the bottom of the ocean would be required to to that?
Why is this beam shriveled up? This seems to be a common theme. Note the holes in the beam, yet the white paint above that shriveled part is still good. It reminds me of what happens when you put a plastic straw over a fire; it crinkles up. This photo is from the Bankers Trust. Was it accidentally "infected" causing it to continue to disintegrate?
The door and front area of these cars appear to have delaminated, without burning the paint, but they are not manufactured as laminated parts
Hutchison Effect sample of aluminum that appears to have delaminated into multiple layers
This sample seems to have something in common with this image.
Aluminum-Jellification from the Hutchison Effect.
Hutchison Effect sample
9/11 fused engine and jelly truck
The only filing cabinet found: The paper still has its color, indicating this filing cabinet did not shrivel due to conventional heat.
Fused block of WTC debris referred to as "the Meteorite."
Knife in aluminum, Hutchison Effect sample
Wood in aluminum, Hutchison Effect sample
From 9/11, note the print on these compressed pieces of paper.
Hutchison Effect sample. Part of this aluminum bar blew out of the hole as dust.
The hole in WTC6 was empty.
Material is missing for WTC1, WTC2, WTC3, WTC4 (except north wing), the holes in WTC5, the center of WTC6, and nearly all of WTC7.
GZ workers descend into the subbasements below WTC2 - While there is extensive damage, there is little building debris at the bottom of the hole. There is no sign of molten metal.
Hutchison Effect bending
WTC steel beam bent like a horseshoe
Hutchison Effect sample vs. WTC steel beam
The spandrel belt looks like a wet tissue was draped across the beams and spray-painted bright red