TFTRH #21 Donald Friedman - After 9-11: An Engineer’s Work at the World Trade Center
[Audio only] Donald Friedman, P.E., F.ASCE, is a professional engineer with more than 30 years of experience in the investigation, analysis, and restoration of landmark buildings. He has taught engineering at Rensselaer Polytechnic Institute, the University of Massachusetts at Amherst, and Columbia University; he has spoken at numerous conferences including the fourth and fifth ASCE Forensics Conference; he is the author of After 9-11: An Engineer’s Work at the World Trade Center, based on his work at the World Trade Center site, starting September 12, 2001.
We talked about his experience at the 9/11 WTC site, and how what he saw relates to the various conspiracies regarding the collapses of the World Trade Center Buildings. We specifically discuss the recent University of Alaska study that Professor Leroy Hulsey carried out for Architects and Engineers for 9/11 Truth. We close out with a discussion of how New York structural engineers view the 9/11 controlled demolition conspiracy theories
The "Gimbal" UFO is the poster child of modern UFO videos. Leaked in 2017, and officially released in 2019, it's considered by many to show a genuine anomalous craft, exhibiting flight characteristics beyond current human technology.
But is it? There are four observables in the video, four things you can check yourself, that demonstrate that the most likely thing we are looking at is actually a camera artifact. It's probably an infrared glare, hiding the hot object behind it, and rotating only because the camera rotates when tracking the target from left to right.
This does not mean it's not a "UAP", or that it's not unidentified, or that it's not an amazing craft - it just means it's not actually exhibiting any incredible behavior, and so this opens the door to more mundane possibilities, like a distant small jet, just flying away, the heat of the engines (viewed up the exhaust) creating a large glare in the thermal camera.
Simulator: https://www.metabunk.org/gimbal/
00:00 Introduction
00:22 The Four Observables
01:18 What's going on
01:59 What I'm not Addressing
02:27 A full 3D recreation
03:01 The ATFLIR camera
03:25 Field of View less than the Moon.
03:55 External Gimbal Axes
05:05 Tracking left to right
05:45 Why the rotation?
06:45 Incorporating Bank in the sim
08:15 Rotating the camera rotates the image
08:47 Derotation
09:07 Real world derotation
09:22 Glare examples
10:21 Glare does not rotate
10:43 Glare derotated "rotates"
11:06 Dero does not rotate it alone
11:27 Differences between sim and video
12:05 ATFLIR's inner mirrors
12:51 Minimizing roll
13:23 Incorporating the glare angle in the sim
13:46 Observable #1 - No rotation while banking
15:23 Observable #2 - Bumps before rotation
16:01 Observable #3 - Rotating patterns
16:24 Observable #4 - Derotation match
17:12 Implications if it's not a glare....
17:58 Background information
19:23 Patent limitations
20:06 Credits
Metabunk Discussions:
Investigation the role of pitch and other facts in the glare angle, Markus.
https://www.metabunk.org/threads/calculating-and-visualizing-gimbal-angles.12237/
Edward Current's work on a full 3D model of the object's movement:
https://www.metabunk.org/threads/gimbal-blender-simulation-with-clouds.12209/
realityseaker and Edward Current on the initial lack of rotation during banking.
https://www.metabunk.org/threads/does-the-beginning-part-of-gimbal-debunk-the-claim-that-the-object-rotates.12068/
Using OpenCV to track the cloud motion
https://www.metabunk.org/threads/automated-motion-tracking-in-videos-like-gimbal-and-gofast.12299/
Credits:
Many Thanks to
Markus Pitch, Graphs, Data, etc
Edward Current 3D Path analysis
Chris Lehto Early Feedback
Mendel Analysis
Robert Hildebrandt ATFLIR Model
jplaza Analysis
jarlrmai Analysis
dim
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https://www.youtube.com/watch?v=qsEjV8DdSbs
Thermometers and IR cameras, like those sold by FLIR, are great for measuring temperature at a distance. But you need to be careful not to take measurements from highly reflective surfaces at face value. This is not a defect in the FLIR cameras (which are a great product), it's just a natural consequence of measuring via infrared radiation which, like visible light, is reflected from shiny surfaces.
In this example an attempt to measure the heat of moonlight fails because it's measuring the temperature of the cold sky or a warm plastic table reflected by some aluminum foil, and not the temperature of foil itself. I duplicate the effect in sunlight, showing how foil in the shade can appear "cooler" than foil in the sun, and how the foil in direct sunlight can appear to be at freezing temperatures, regardless of how hot it actually is.
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https://www.youtube.com/watch?v=Gfe5QoESNh4
Command David Fravor is the pilot who famously observed the "Tic-Tac" UFO (although he did not get any video). He was recently on the Lex Fridman podcast and was asked about my various hypotheses regarding his encounter and the three Navy UFO video (FLIR1, GIMBAL, and GOFAST).
I was quite hopeful there would be some interesting objections. But it turned out that he's not really familiar with what my hypotheses actually were - seemingly only vaguely knowing the ideas second hand. So he mostly went off on irrelevant tangents. It was all rather disappointing, but not without interest.
Here's the Lex Fridman interview: https://youtu.be/aB8zcAttP1E?t=9001
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https://www.youtube.com/watch?v=fT1uRf5_dF4
This is at 4x speed. The rippling you see around the edges if from atmospheric distortion.
As the moon is setting the sun is rising opposite it.
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https://www.youtube.com/watch?v=fv2Voy0XRRo
The most commonly shown video of the WTC7 collapse is zoomed in on the upper visible portion. This gives the misleading impression that it's quite a wide, squat building. Really it was relatively tall and slender.
Here I've overlaid the collapse video with a later segment in the same video with a wide angle view of the whole street. (the camera has hardly moved, so they line up very well.)
It gives a much better sense of the scale of the event.
Source Video for both clips: https://www.youtube.com/watch?v=FX-70GtMrsU
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https://www.youtube.com/watch?v=QiFxm16-MQ0
My bit actually starts at 0:38 in this clip, but I included the bit of me walking on the beach with Russ Tanner's voice over to show how I was introduced in the documentary. I'm happy that they included so much of what I said, but the intro was maybe a bit misleading.
For a full transcript and audio of my one hour interview, see: https://www.metabunk.org/mick-west-interview-for-overcast-documentary-by-dedal-films.t6303/
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https://www.youtube.com/watch?v=q8JoR7u1rDE
When you see a slowly rising bright light off in the distance you don't immediately think that it's a plane. When planes are flying directly towards you and are a long way off (over 50 miles) they appear almost stationary, just rising very slowly. So they often get tagged as "UFOs"
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https://www.youtube.com/watch?v=6e7cw4bYvM0
Near Sacramento, cloud layer at around 25,000 feet. Supercooled water clouds turn to ice when disturbed, and the hole spreads.
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https://www.youtube.com/watch?v=vUYGjwCeonY