Thread by @drbairdonline

In a recent thread, I concluded the North Tower "collapse" could NOT have "punched" this 11-story #WTC6 "crater" AND there was NO major explosion in WTC6 on 9/11. So WHAT caused this crater & where DID all the steel, concrete, furniture, etc. go?
Thread
1/

https://twitter.com/drbairdonline/status/1439209306100883456

The working hypothesis I will explore in this thread is the missing #WTC6 contents spewed out as clouds of blackish dust, smoke, steam, etc., in a process that took many hours beginning with #WTC1 “collapse” & lasting through most of the night.
2/

As to HOW this was accomplished, I will consider the various scenarios that people have suggested over the last 20 years for what could have possibly made the Twin Towers "disappear" into fine dust that I previously explored in a Sep 2020 thread
3/

https://twitter.com/drbairdonline/status/1304390169051553792

Firstly, there is quite a bit of independent close-up video footage showing that #WTC6 generated prodigious amounts of blackish smoke - but very little visible fire - following the collapse of #WTC1.
4/

Those stills come from Etienne Sauret's film WTC: The First 24 Hours (2002) outtakes that has about 5 minutes of footage on the blackish smoke billowing out of #WTC6 (with the easily recognizable gash in its roofline) from many different angles.
5/

Quite a few of William Cirone's 49 video clips taken on 9/11 released as NIST FOIA focus on #WTC6 including this one showing more fire in #WTC6 than other videos while massive amts of blackish smoke billow out of the top of the bldg
6/

Here's another William Cirone video clip looking east on Vesey St showing how the blackish cloud coming off #WTC6 swirled up alongside the 47-story #WTC7 to the north (left) appearing to come from every direction
7/

Indeed the blackish cloud from #WTC6 towered above the 47-story Building 7 #WTC7
8/

Here's an interesting clip from William Cirone collection looking south on Washington St right at the heart of #WTC6 where the "crater" was on the other side of the still intact but highly damaged north face of #WTC6
9/

Such video clips give us glimpses into the intensity of the blackish "smoke" pouring out of the top of #WTC6, but what is even more astounding is that #WTC6 continued to churn out this "smoke" ALL DAY LONG!
9/

For getting a sense of the overall quantity of blackish "smoke" churned out by #WTC6 we are fortunate to have extensive CNN video of the WTC complex on 9/11 as part of “Understanding 9/11: A Television News Archive” at archive.org.
10/

https://twitter.com/drbairdonline/status/1433040725554262019

CNN had two cameras fixed on the Lower Manhattan skyline on 9/11. The main camera angle - from where CNN anchor Aaron Brown broadcast on the rooftop all day - was located at West 34th St & 8th Ave pointing SSW, centered on the gap btwn One Liberty Plaza (l) & #WTC7 (r)
11/

The other camera angle was also aimed SSW but further to the west allowing you to see over the peak of distinct Bank of New York Mellon right down Washington St separating #WTC7 (l) & Verizon bldg (r) directly onto the location of what will be the huge #WTC6 crater!
12/

A distinct rapidly rising blackish cloud that will cover Lower Manhattan the rest of the day on 9/11 first appears around 1040 EDT
13/

Sometimes it might not appear clear where the "smoke" is coming from. Occasionally the base of the cloud appears very wide as if several sources. There was also a steady NNW wind averaging 8-10 mph all day which means the cloud as it rose was always moving from right to left.
14/

A helicopter shot of the blackish cloud at 1122 EDT (right) shows how the wind pushed the cloud SSE to cover much of Lower Manhattan
15/

Because wind moved the blackish cloud SSE, it might not always seem clear where exactly the "fire" was. But a straight line extrapolation of the center of the cloud's main stem back to ground nearly always shows the cloud was coming from behind #WTC7 where #WTC6 was located
16/

This blackish cloud obviously played a highly iconic role on 9/11 b/c w/o cloud how would anybody know something horrible had happened earlier that day in any live shots of Lower Manhattan? But curiously NO local TV station or natl TV network ever sent a reporter to cover it!
17/

CNN, FOX & local NYC stations had quite a few reporters on the street in Lower Manhattan the morning of 9/11 but after #WTC1 "collapse" @ 1028 EDT they all went into hibernation until suddenly seemingly woken up by the imminent "collapse" of #WTC7 six hours later.
18/

Thus we never learn from CNN or any other TV network where this blackish "smoke" was coming from on 9/11. Indeed it seems part of the "9/11 script" to have left viewers w/the impression that the "smoke" was coming from what was left of the Twin Towers.
19/

https://twitter.com/drbairdonline/status/1180929101294526465

Admittedly it's hard based on CNN camera angles to distinguish "smoke" coming from #WTC6 & #WTC1 rubble but the fact that you never see 2nd plume from #WTC2 rubble & independent video shows NO blackish "smoke" coming from #WTC1 rubble evidences "smoke" not from Twin Towers
20/

An occasional shift in the wind sometimes makes it even more clear the blackish cloud over Lower Manhattan is coming from #WTC6 as in this still showing a "double plume" with both pointing to the area of #WTC6
21/

Even though he'd been standing in front of this "blackish" cloud since 1040 EDT, CNN anchor Aaron Brown had paid absolutely no attention to it. That all changed @ 1610 EDT when he got word that "Building 7 in the WTC complex is on fire & has either collapsed or is collapsing"
22/

It wasn't just BBC's Jane Standley in front of a still standing #WTC7 saying the bldg "has either collapsed or is collapsing". CNN's Aaron Brown did it too! Neither had any inkling where #WTC7 was! They were just saying what they were told, all part of the same "9/11 script"
23/

And for the first time that day, CNN anchor Aaron Brown was allowed to talk abt the "blackish" cloud over Lower Manhattan, admitting "It is extraordinary to us, I guess, how long this scene has gone on. The smoke has not cleared at all. It has not lightened at all."
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Aaron Brown: "It was that horrific moment when the towers collapsed and then we’ve been in this sort of situation ever since," noting that CNN producer Rose Arce had described the fires in the area of the Twin Towers & "clearly those fires continue to burn"
25/

CNN's Judy Woodruff Judy added "It looks to me, as it may to Aaron as well, that these live pictures of that smoke is so black, BLACK, that it may be the result of a fresh part of this terrible disaster. But it is only speculation at this point."
26/

Contrary to Woodruff, the "blackish" cloud had NOT gotten BLACKER nor BIGGER but obviously believing so was part of the "9/11 script." What made the cloud seem so ominous sometimes was that CNN for the first time started zooming in on the cloud!
27/

When #WTC7 did "collapse" @ 1720 EDT it only had a slight tugging effect on the bottom of the "blackish" cloud which then returned promptly to form, suggesting the "blackish" cloud was CLOSE to but SEPARATE from #WTC7 evidencing one again #WTC6 as its source
28/

Within a minute however, the "blackish" #WTC6 cloud got much bigger & pushed in several directions while, as Aaron Brown noted, it appeared to have gotten "much lighter". The cloud remains rather amorphous the rest of the evening.
29/

Although it is hard to judge how active #WTC6 was in the night, there certainly appears to be some continuing activity as late as 5 am while the firefighters wrapped things up. In the morning the #WTC6 "blackish" cloud was gone, replaced by a whitish fog.
30/

As might be guessed from complete lack of coverage of #WTC6 on 9/11, the bldg was completely ignored in the 9/11 aftermath. Only WaPo bothered to even mention it, saying simply "Building 6, the US Customs House, was a smoldering, soot-blackened hulk."
31/
washingtonpost.com/wp-dyn/content…

CNN producer Rose Arce's video 9/11 journal ignored #WTC6 & the "blackish" cloud while rather disingenuously actually using footage of #WTC6 (shot looking south from Park Place down W Broadway) as proof of the "fiery hulk" that she says WTC7 had become
32/

The Naudet bros film 9/11 (2002) following FDNY firemen on 9/11 seen by millions has an unexplained 5-sec clip of blackish "smoke" pouring out of unnamed #WTC6 with the fireman saying only "I got down there just as 7 World Trade finally collapsed."
33/

Rick Siegel, who had set up his camera across Hudson River in time-lapse mode following "collapse" of #WTC1 & thus could have done much to resolve whence the blackish "smoke", similarly skipped right to #WTC7 in his documentary "911 Eyewitness" released Sep 2005
34/

Using the audio from 1010WINS news radio as his soundtrack, Siegel's "911 Eyewitness" marvelously captures how the blackish "smoke" - coming for hours from #WTC6 - was transformed by the #WTC7 "collapse" into a much larger, mixed blackish/whitish, vertically rising cloud
35/

And yet we hear the 1010WINS reporter saying “although we really couldn’t see much damage on it [i.e., Building 7], there was smoke pouring out of it for hours" - another clear example of how all that #WTC6 "smoke" was TRANSFORMED into #WTC7 "smoke" as per "the 9/11 script"
36/

The "official" co-opting of #WTC6 to fit the #WTC7 LIE came with the FEMA report (May 2002) that asserted "video footage indicated that the majority of the smoke [from #WTC7] appeared to be coming from the south side of the building". Duh! Because that's where #WTC6 was!
37/

The FEMA report claims their video analysis "corroborated" by this photo (left) taken at 3:36 pm "that shows the south face of WTC 7 covered with a thick cloud of smoke", smoke that we have already shown over & over emanated from #WTC6 - NOT #WTC7!
38/
fema.gov/pdf/library/fe…

The FEMA report further claimed this photo at 3:25 pm “shows a large volume of dark smoke coming from all but the lowest levels of WTC 7” although admitted “the mode of fire & smoke spread was unclear”. Uhh, maybe it's unclear b/c the smoke wasn't coming from #WTC7 at all!
39/

FEMA were easily able to co-opt the blackish #WTC6 smoke for the #WTC7 LIE b/c they didn't really have to report on what went down at Building 6 since they claimed "access in WTC 6 was severely limited." Instead they just used #WTC5 to explain what happened in #WTC6!
40/

I've already covered what FEMA had to say abt #WTC5 & #WTC6 damage in my previous thread but needless to say they do NOT mention the tremendous amt of blackish "smoke" churned out by #WTC6 all day nor explain why #WTC6 damage so much worse than #WTC5
41/

https://twitter.com/drbairdonline/status/1439620504248143879

Indeed using BOTH #WTC5 and #WTC7 to totally co-opt the #WTC6 story must have been part of "the official 9/11 script" b/c at time of #WTC7 "collapse" CNN's Aaron Brown mentioned Building 5 may also have come down & 1010WINS anchor heard reports #WTC5 may now be on fire
42/

While all the evidence suggests the blackish "smoke" that hung over Lower Manhattan on 9/11 emanated from #WTC6, there is no video evidence of extensive fires in Building 6 whereas the #WTC5 story has some dramatic fire stills & video to go with it.
43/

Indeed this focus on fires in #WTC5 to the complete exclusion of #WTC6 - with its massive crater & incredible amts of blackish "smoke" churned out on 9/11 - even colors physicist Heinz Pommer's book The Ground Zero Model (2020)
44/

Even so-called #911Truthers who have highlighted the "mystery" of the #WTC6 crater NEVER mention the blackish "smoke" churned out by #WTC6 on 9/11. I would say that "smoke" was "memory holed" but there was NEVER any memory of it in the first place!
45/

https://twitter.com/drbairdonline/status/1439209306100883456

It seems to me very likely that the connection between the blackish "smoke" & the #WTC6 crater has been so deliberately obscured is because any open-minded person would start to wonder if there was some kind of connection between the two!
46/

Indeed one can imagine that a tech savvy person might be able to do for #WTC6 "cloud" what Jim Hoffman using "basic physics" did in Jun 2003 for #WTC1 concluding energy required for just expansion of the dust cloud over 100x greater than gravitational energy available
47/

And one can imagine that some other tech savvy person might also be able to calculate the MASS of the #WTC6 "cloud" and compare it to the MASS of the steel, concrete, furnishings, etc. disappeared from the #WTC6 crater
48/

Oh, and let's not forget the tremendous amount of energy it would have taken to pulverize the #WTC6 steel, concrete, furnishings, etc. into "smoke" particles, an energy estimate that would heavily dependent on how big those "smoke" particles actually were
49/

So if, indeed, #WTC6 steel, concrete, furnishings, etc. literally went up in "smoke," HOW did the 9/11 perps pull this off? Fortunately #911Truthers for 20 years have generated lots of ideas for how so much of the Twin Towers "disappeared" that give us a good starting place!
50/

Feb 2002 Christopher Bollyn reported former E German physicist told him "a directed-energy weapon [DEW] using 'deep infrared' radiation" could have destroyed WTC. Bollyn wrote could explain 425,000 cu yds concrete "disintegrated into dust" & so many of the dead "vaporized."
51/

This infrared laser technology, first developed by USSR in 1960s, transferred to west in 1990s & since 1995 US & Israel have jointly developed a mobile Tactical High-Energy Laser (THEL) as part of a joint program known as Nautilus
52/
serendipity.li/wot/bollyn1.htm

E German physicist's description of demonstration of a plate in an apartment was "disintegrated" to fine dust by laser beam weapon 200 m away - not suddenly but in a process taking ~15 minutes - it would seem an interesting candidate for the job of carving out #WTC6 crater.
53/

But SEVEN years later, after becoming a convert to Steven Jones' super-thermite theory, Bollyn wrote that former E German physicist was actually a Mossad agent "Frau Marek" who had duped him with "disinformation" about laser beam weapons! Hmmm.
54/

Jan 2004 Jim Hoffman in fascinating 2-hour interview on Guns & Butter called DEWs his "working theory", "physically possible" & better explains "number of more subtle features" including fineness of pulverization
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911research.wtc7.net/interviews/rad…

Hoffman acknowledged not really certain "where the energy came from" but imagined some kind of maser device trucked into the deep sub-basement of the towers "pumped by some source of energy" ~1.5 gigawatt-hours delivered in ~15 sec would take a foot-thick copper cable
56/

But after Hoffman also became a convert to Steven Jones' super-thermite theory, he too wrote he no longer considered "credible" the DEW theory he had waxed eloquently on less than TWO years earlier. Hmmm. Do I detect a pattern?
57/

https://twitter.com/drbairdonline/status/1305157206564716544

Curiously around same time Bollyn & Hoffman abandoned DEWs for super-thermite, Oct 2006 Drs Judy Wood & Morgan Reynolds (W&R) began posting web articles advocating DEWs as best explanation for utter destruction of WTC on 9/11, including #WTC6.
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drjudywood.com/articles/DEW/S…

W&R argue the Twin Towers were "pulverized to dust" before they "collapsed" in a process they call "dustification" leaving very small pile of rubble while dust covered Lower Manhattan.
59/

W&R believe "dustification" also explains the "mysterious holes" in Buildings 5 & 6 which b/c of their "verticality" could not have been done w/conventional explosives. #WTC6 "lost about half of its volume & there was remarkably little debris left at the bottom of building."
60/

W&R assert the vertical holes in WTC6 have "the shape of cylindrical core samples" - "vertically straight holes" w/"little apparent horizontal damage to the balance of the interior of WTC6" & "the parking garage below WTC6 remained essentially undamaged" 61/

W&R note overhead views of #WTC6 show "not a single cut-out but a cluster of vertical cut-outs that coalesce together and form a scalloped border" with almost circular cut-outs going down to ground level having a "fairly consistent diameter" of about 24 feet
62/

W&R note in #WTC6 "the holes are essentially empty" w/minimal visible debris & all at ground level, no collapsed floors at bottom while "the heart of the building is gone" evidencing "dustification"
63/

W&R concluded all data consistent w/DEWs & evidence such technology exists but emphasized they made no claim about whether DEW operated from a space-, air-, or ground-based platform, actual source of energy, etc
64/
drjudywood.com/articles/DEW/S…

However, in terms of my working hypothesis that the missing #WTC6 contents spewed out as blackish "smoke," there is a major problem w/Wood & Reynolds "dustification" theory b/c they do NOT seem to think the "blackish" smoke was the result of #WTC6 "dustification"
65/

For this photo clearly showing blackish "smoke" pouring out of #WTC6, W&R do NOT mention the smoke, merely using the photo to illustrate the height of #WTC6 compared to #WTC1 rubble. It is clear they believe whatever "dustification" there was at #WTC6 had already happened.
66/

W&R also seem to attribute a lot of the blackish "smoke" following the "collapse" of #WTC1 to burning cars in the parking lot diagonally across West St from #WTC6 although I note from video analysis that the wind did occasionally push #WTC6 "smoke" to the west
67/

May 2007 web article Judy Wood goes even further to claim the huge "blackish" cloud that covered Lower Manhattan after #WTC1 "collapse" came from the parking lot!
68/
drjudywood.com/articles/dirt/

Furthermore Judy Wood asserts, much as FEMA had in 2002, the blackish "smoke" in these photos was coming from #WTC7 - in what she calls "lathering up" before the coming "collapse" - even when it is quite clear (lower right) the blackish "smoke" was actually coming from #WTC6!
69/

Dec 2007 Judy Wood & John Hutchison began promoting idea "WTC was destroyed by devices that are scaled up, refined and/or weaponized versions" of the "Hutchison effect" employing Tesla's "free energy" that I discuss in detail in this Sep 2020 thread
70/

https://twitter.com/drbairdonline/status/1305544454015655944

Jan 2007 "Physics Professor" @ "911 University" declared only "molecular dissociation" could explain "so many unnaturally-tiny particles" that UC Davis found at GZ that would require a "plasma" (tens of thousands of degrees)
71/
web.archive.org/web/2007011706…

Oct 2008 "Physics Professor" @ "911 U" concluded vertical chain of very-low-yield, directional, pure-fusion devices to be "the simplest & thus most likely potential source" of energy capable of generating this molecular dissociation in the Twin Towers
72/
911u.org/Physics/WTCene…

Apr 2017 physicist Heinz Pommer proposed instead a single underground 3rd-generation Directed Energy/Minimum Residual Radiation nuke (developed by US in 1970s) connected to each tower by a channel better explains all the phenomena observed on 9/11
73/
911history.de/pdfs/911_Analy…

Pommer's 3rd-gen nukes consisted of primary fission charge (w/x-ray/neutron reflectors) to generate heat & pressure to maintain long burn ("nuclear fizzle") of secondary fusion charge resulting in extremely powerful x-ray emission re-radiated in a solid angle upwards
74/

Pommer says these x-rays were absorbed by steel & concrete crystals in the towers, breaking chemical bonds in iron crystals reducing steel to blackish iron dust while water in concrete turned into steam blasting concrete into whitish dust & non-crystalline paper left intact
75/

Pommer in his book The Ground Zero Model (2020) states you can clearly see in photos central blackish cloud of condensed iron vapor/iron dust of the towers steel core & whitish eruption-like fountain caused by pressure discharge of condensed steam & pulverized concrete
76/

Pommer never addresses the blackish "smoke" pouring out of #WTC6 all day on 9/11, but curiously he has presented photos of the blackish cloud overhanging Lower Manhattan as evidence of "air suspended iron micro-droplets." So is that the reason #WTC6 "smoke" was blackish?
77/

One imagines that an array of 3rd-gen nukes - each producing a powerful X-ray emission like the kind Pommer describes - might have been able to produce the "molecular dissociation" of the contents of #WTC6 in the shape of the observed empty crater
78/

Since the crater extends all the way into the basement levels, the 3rd-gen nukes would likely be located somewhere in the basement. Aimed upward, the X-ray emission from each 3rd-gen nuke would spread out conically, creating progressively larger holes in the floors above.
79/

A large 3rd-gen nuke detonated on Basement Level 3 (B3) could be responsible for that large oval-shaped hole in B2 floor (left) while small 3rd-gen nukes placed around the "scalloped" perimeter could have produced the circular cut-outs ~24 ft diameter (right) that W&R noted
80/

Whether this array by itself could produce the kind of "vertically straight holes" W&R noted in #WTC6 is open to question but more importantly it leaves unexplained the non-stop outpouring of massive amounts of blackish "smoke" from #WTC6 for 8+ hours.
81/

If that STEADY massive plume of blackish "smoke" coming out of #WTC6 for 8+ hours on 9/11 is indeed being generated by the "molecular dissociation" of the building's steel, concrete, furnishings, etc., it would seem we need to take a second look at more "exotic" kinds of DEWs
82/

I will admit that I don't know enough about all the different kinds of "exotic" DEWs to have reached any kind of conclusion about what kind of DEW could have both blasted the #WTC6 crater AND generated that huge blackish cloud that hung over Lower Manhattan on 9/11.
83/

Thus what follows in the rest of this thread will only be speculative suggestions in no particular order of what I consider promising avenues for further research. If you are interested in this subject & would like to contribute to the conversation, please feel free to do so!
84/

My gut tells me that the most likely explanation for both the size & shape of the #WTC6 crater as well as the 8+ hours of blackish "smoke" would be a "reactor-pumped laser" that the US has been working on since the early 1980s.
85/

A "reactor-pumped laser" (RPL) is a variation of the "nuclear-pumped laser" (NPL) in which the nuclear fission fragments captured in special lasing mixture come not from a nuclear reactor rather than a nuclear bomb.
86/
web.archive.org/web/2006062106…

S. P. Melnikov et al in Lasers with Nuclear Pumping (2015) show earliest schemes for stationary RPL going back to the 1960s focused on either (a) a gas compound UF6, uranium vapor, or uranium aerosol particles (b) thin layers of uranium or its compounds on metal substrates.
87/

Richard J. Rodgers prepared for NASA in Apr 1979 an “initial conceptual design” for an RPL (that he referred to as a “self-critical NPL” & “direct NPL”) employing gaseous 235UF6 as the fissionable material.
88/
web.archive.org/web/2010052018…

Rodgers proposed a “reference configuration” (Fig. 5) of 3.2 cu m lasing volume within heavy water/graphite reflector moderator w/critical mass of 4.9 kg U235 yielding total fission power level of 100 MW that “appears capable of operating in a continuous steady-state mode”
89/

Rodgers calculated dimensions for this heavy water configuration of diameter 450 cm (14.8 ft) & height 600 cm (19.7 ft) weighing 141,400 kg (156 US tons), noting substitution of beryllium for heavy water would reduce estimated reactor weight to 68,200 kg (75 US tons)
90/

Rodgers found KrF and XeBr lasers too large quenching effect due to the UF6 optical absorption but three lasing media operate at wavelengths for which UF6 absorption relatively low - iodine (I2) (342 nm), XF (351, 353 nm) & N2 (358 nm) lasers - all in ultraviolet UV-A range
91/

In 1983 NASA High-Power Laser Working Group issued report reviewing three different 100-MW laser designs (photovoltaic electric-discharge laser, solar-pumped laser & Rodgers' RPL), thought integrating RPL reactor & laser into single unit would require too much funding
92/

In the early 1980s, after the first successful test of the bomb-driven X-ray laser on 14 Nov 1980, Lawrence Livermore began working on what they called the “laboratory” X-ray laser w/far less pump energy but test equipment could be used repeatedly
93/
osa-opn.org/home/articles/…

Although much interesting work was done on X-ray lasers in the 1980s & 1990s to try to produce shorter wavelengths & smaller lasers, it seems (at least based on the published work) this X-ray laser work was not intended to produce anything akin to Rodgers’ high-power RPL
94/

In the 1980s & 1990s the main US center for work on high-power lasers was FALCON (Fission Activated Laser CONcept) RPL program @ Sandia Natl Labs, developed continuous wave (CW) RPL scalable to 100+ MW while "relatively compact & capable of long run times w/o refueling”
95/

Dec 1993 DOE developing FALCON high-power, steady-state RPL, have already experimentally demonstrated w/mixtures of Xe Ar Ne & He @ 585 to 3370 nm, numerous applications e.g. beaming power to space, manufacturing, “compact size & self-contained power” makes suitable for ships
96/

Neither Sandia nor DOE revealed FALCON laser dimensions or weight but a laser suitable for ships might just have fit in #WTC6 basement. But could such a high-power laser have carved out #WTC6 crater while churning out all that blackish “smoke” we saw on 9/11?
97/

The key question appears to me to be whether these high-powered lasers operating in the UV, visible or IR wavelength range could have turned the structural steel in #WTC6 into blackish “smoke” just as physicist Heinz Pommer says directed X-rays did in the Twin Towers?
98/

In short, lasers in the ultraviolet to infrared wavelength range are indeed capable of reducing steel into blackish nanoparticles through the process of “laser ablation.”
99/

When a laser irradiates the target surface, the whole incident energy (P0) can be reflected (PR), absorbed (Pβ) or transmitted (Pζ). When laser energy absorbed by the target reaches a specific value (ablation threshold), laser ablation begins.
100/
sciencedirect.com/topics/enginee…

Ablation is a complex interaction many overlapping & separate events: absorption, electronic excitation, rapid heating, plasma generation, photolysis, sputtering, melting, expansion, ejection, decomposition, oxidation, vaporization, sublimation, condensation & solidification
101/

"A plume of atoms, small clusters and nanoparticles is formed during laser ablation."
102/
digitalcommons.wcupa.edu/cgi/viewconten…

UV short-pulsed lasers are preferred for metal ablation b/c most of the energy from lasers w/long wavelength will be reflected by the metal surface
103/
sciencedirect.com/science/articl…

However, studies show lasers operating in the near-infrared part of the spectrum (1064 nm) are perfectly capable of ablating an iron target in air at atmospheric pressure, producing magnetic nanoparticles
104/
sciencedirect.com/science/articl…

Several studies have shown near-infrared & visible light lasers ablate metals & non-metals but ablation rate decreases & ablation fluence threshold increases as laser wavelength increases. For graphite, F ≈ 10 J cm−2 @ 355 nm, 25 @ 532 nm & 55 @ 1,064 nm.
105/

As to that blackish "smoke", at least one study has shown that laser ablation of a metallic iron target in air produces a mixture of iron oxide & iron nitride nanoparticles, predominantly composed of the very black magnetite
106/
sciencedirect.com/science/articl…

As for concrete in #WTC6 floors, studies have shown near-infrared lasers quite capable of ablating concrete w/sand particles tending to fracture or dislodge w/o melting & cement mostly disaggregating into grainy clumps while some melts or vaporizes
107/
inis.iaea.org/collection/NCL…

As #WTC6 cluster of vertical circular cut-outs w/~24 ft diameter forming "a scalloped border", RPLs are certainly capable of "drilling" such large cut-outs via either trepanning or helical drilling.
108/

Another major source of evidence that the 9/11 perpetrators employed reactor-pumped lasers (RPLs) in #WTC6 is the numerous examples of EMP effects in and around #WTC6 on 9/11.
109/

As EMT Patricia Ondrovic ran past the Vesey St #WTC6 entrance just as #WTC2 "collapsed", she saw several parked cars started blowing up & catching fire that set her turnout coat & hair on fire. One car door flew off with loud bang.
110/
killtown.blogspot.com/2006/02/911-re…

EMT Ondrovic saw "a series of flashes around the ceiling of the #WTC6 lobby all going off one-by-one" sounding like light bulbs popping that she thought then & still were "timed explosives" like a Las Vegas casino being demolished
111/

Physicist Heinz Pommer believes the lighting effects in #WTC6 lobby that EMT Ondrovic saw and parked cars exploding and/or catching on fire suggests an electromagnetic pulse (EMP) that he sees as further proof that a nuclear device was at work on 9/11
112/
911history.de/aaannxyz_ch07_…

And there is good evidence this EMP was coming from inside #WTC6. In this segment of Sixty Minutes II broadcast 31 Oct 2001, Dan Rather gave us the first close-up views of the #WTC6 crater from its bottom on Basement Level 3 (B3)
113/

On B3 Rather was astonished to see an automobile hanging & Comm'r Ken Holden said "Obviously the rubber has been burnt off. The fire here was so hot." Actually there were quite a few cars as far as 7 blocks from WTC with tires mysteriously burnt off.
114/
chazzsongs911.blogspot.com/2007/03/what-m…

As they walked past many burnt out cars on B3, Comm'r Holden says "You'll be able to see [over here] the aluminum hubcap is just melted right off. That's a puddle of aluminum from the fire.” That's actually an entire aluminum alloy rim that completely MELTED!
115/

The melting point of standard A356 aluminum alloy used for car rims is 1130°F. FEMA says "A vehicle fire can generate heat upward of 1500°F" but I seriously doubt NORMAL car fires on B3 melted that aluminum rim!
116/

After all, we barely saw ANY fire in #WTC6 on 9/11, just a LOT of blackish "smoke"! And we can actually see a car on B3 IN THE CRATER that appears (at least the back half) totally unburnt!
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My suspicion is that the cars burnt & rims melted on B3 inside #WTC6 for the same reason cars exploded & burst into flame outside #WTC6 at the Vesey St entrance and flashes went off on #WTC6 lobby ceiling like "timed explosives" - nuclear EMP!
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People usually associate EMP w/nuclear bombs but reactor-pumped lasers (RPLs) commonly employ intense gamma radiation as pump source, producing Compton-scattered electrons - "the most important mechanism for EMP production from a nuclear detonation" - to excite laser medium
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