Creative Speculation

captain queeg

(11,780 posts)

14. seems questionable

Mon Jan 23, 2017, 02:03 PM

Jan 2017

I'm an engineer. Its not like we have a lot of similar occurrences to measure this event. The failure of the buildings seems odd to me, but I don't have any idea of the structure underneath.

I would question that statement about being designed to survive a 747 traveling at 400 mph, mostly because even if they did consider a jetliner hitting it, they'd have assumed a more normal speed, and that certainly wouldn't be anything like 400 mph near the ground. Energy is proportional to the velocity squared so 400 mph would have 4 times the energy of a plane going at 200 mph. That being said I'm not saying its impossible, just seemed to me like the collapse was too uniform.

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Explosions Before The Collapse of WTC 7 [View all] wildbilln864 Sep 2016 OP

What do structural beams sound like - from outside a building - when they fail? jonno99 Sep 2016 #1

hard to say as... wildbilln864 Sep 2016 #2

I never say never - especially if an external force exceeds the design specs...nt jonno99 Sep 2016 #3

the WTC structures were built with a redundancy factor of 5 times wildbilln864 Sep 2016 #4

There are many, many, sites that explain why the towers fell - without the jonno99 Sep 2016 #5

A 747 at 400 mph? Right. Nt hack89 Sep 2016 #7

Correct nationalize the fed Sep 2016 #8

Another nationalize the fed Sep 2016 #10

The buildings sustained the impacts. AtheistCrusader Jun 2017 #25

"redundancy factor of 5 times" whitefordmd Oct 2016 #12

Seriously? Buildings with steel beams fail too often in India and Bangaladesh. marble falls Sep 2016 #6

NIST WTC 7 FAQ nationalize the fed Sep 2016 #9

"No fire codes changed." You really believe that? hack89 Sep 2016 #11

Exactly Separation Jan 2017 #13

Doesn't fit the narrative so it won't be responded to. AtheistCrusader Jun 2017 #22

seems questionable captain queeg Jan 2017 #14

Lol, is that 747 statement in there? jberryhill Feb 2017 #15

707 AtheistCrusader Jun 2017 #24

Yep..the B-25 crash into the Empire State Building in 1945 was their design motivation. sdfernando Jun 2017 #27

FYI - It also wasn't part of the design marylandblue Jun 2017 #28

Thanks, I did not know that. /nt sdfernando Jun 2017 #40

Of course it fell uniform MosheFeingold Feb 2017 #16

I see your point captain queeg Mar 2017 #17

It did. BOTH towers fell, slighly biased in the direction from which they were hit. AtheistCrusader Jun 2017 #23

redundancy factor captain queeg Mar 2017 #18

What is redundancy factor?how is it defined in stucture? Ptah Mar 2017 #19

Are you an engineer, or just look stuff up on the internrt to troll people? captain queeg Mar 2017 #20

You asked - Also, what the hell is a redundancy factor? Ptah Mar 2017 #21

Post counts are so meaningful when you're given accurate, source-able information in response AtheistCrusader Jun 2017 #26

Grenfell Tower London gyroscope Jun 2017 #29

Because it's made of concrete, not steel. AtheistCrusader Jun 2017 #30

So steel-framed buildings should collapse from fire? gyroscope Jun 2017 #31

See this building in Denmark marylandblue Jun 2017 #33

But it didn't collapse gyroscope Jun 2017 #34

It's a partial collapse marylandblue Jun 2017 #38

Madrid Tower fire. All the upper floors are framed in steel and they collapse two hours into the AtheistCrusader Jun 2017 #41

Hard to believe gyroscope Jun 2017 #32

Different issue in structures marylandblue Jun 2017 #35

You're ignoring the heatsink issue gyroscope Jun 2017 #36

Structural steel is usually insulated, per fire code marylandblue Jun 2017 #37

Seriously? gyroscope Jun 2017 #39

Go look up the definition of progressive collapse marylandblue Jun 2017 #43

Explosives brought down the OKC building gyroscope Jun 2017 #45

REpeat: Go look up the definition of progressive collapse marylandblue Jun 2017 #47

OKC: Progressive collapse caused by massive explosions at the base of the building gyroscope Jun 2017 #48

See post 47 marylandblue Jun 2017 #50

This message was self-deleted by its author marylandblue Jun 2017 #51

WTC7 straddled the con-edison substation. Have you ever heard an electrical transformer blow? AtheistCrusader Jun 2017 #61

Interesting theory gyroscope Jun 2017 #65

I didn't say anything about fire. AtheistCrusader Jun 2017 #69

Your first sentence is true. However, it bears no relation to the WTC impacts/fires. AtheistCrusader Jun 2017 #62

It's a temperature thing. Watch the video of the Madrid Tower fire. AtheistCrusader Jun 2017 #42

Picture of what fire can do to structural steel marylandblue Jun 2017 #44

Good gyroscope Jun 2017 #46

Think about it this way marylandblue Jun 2017 #49

Comical analogy gyroscope Jun 2017 #52

Not really.sure how you can watch a video of a collapse marylandblue Jun 2017 #54

Madrid Tower Fire. AtheistCrusader Jun 2017 #60

Cardington fire tests disprove official collapse theory gyroscope Jun 2017 #53

So tell me marylandblue Jun 2017 #55

For a total collapse to be plausible gyroscope Jun 2017 #56

Sorry that is not the correct answer to my question marylandblue Jun 2017 #57

Your own link disproves the official fairy tale gyroscope Jun 2017 #58

You did not answer my question marylandblue Jun 2017 #63

The mass sitting above the fire on the South Tower was equal to the Yamato. AtheistCrusader Jun 2017 #59

I suggest we assign an exercise to.the conspiracy theorist marylandblue Jun 2017 #64

The thread topic is about WTC 7 gyroscope Jun 2017 #66

Well WTC 1 and 2 did come up earlier in the thread marylandblue Jun 2017 #67

Long span steel beams. AtheistCrusader Jun 2017 #68

Well for WTC 7thinking of a different feature that isn't in WTC 1 or 2 marylandblue Jun 2017 #70

Look up Newton's third law of motion gyroscope Jun 2017 #71

How did you get from marylandblue Jun 2017 #72

So much smoke and mirrors gyroscope Jun 2017 #73

All I've done on this thread is asked questions you can't or won't answer marylandblue Jun 2017 #74