? ... steel does not have to melt to fail.
http://i286.photobucket.com/albums/ll116/tjkb/woodsteelfire.jpg
You have no idea what steel does in fire. This statement is based on ignorance.
Proof you are gullible. The many high rise fires were fought; Fires were fought. Plus the WTC towers burned for weeks, not just 17 plus hours, weeks. The WTC fires were not fought except for WTC 5 and 6, which partially collapsed internally, but survived to stand as empty burnt out structures in part due to WATER, fires fought. You are so gullible, or like to post lie to expose your lack of knowledge. One Meridian Plaza, fires were fought, the building was totaled by fire, never used again. Windsor Building, fires were fought, the building was totaled by fire, never used again, gone.
You mean the explosions reported caused the building to collapse? Do you understand many reports of explosions were people hitting the ground? You are gullible.
Using photos and video, the collapse of the towers was not near the time for free fall. You posted lies from idiots.
BTW, what is free fall speed? What does this mean? Explain using math, use some physics, give us a number please!
? Show us the numbers!
Physics, shows the buildings could fall as fast as 12.08 seconds. Gee, whiz, math proves you are wrong. Why can't you do the math?
Too smooth? This is your evidence?
People hitting the ground were reported as secondary explosions, and this is your evidence? Does E=mgh mean anything to you?
What? Robertson designed the building for an impact of a 707 lost in the fog, low on fuel, flying at 180 mph. An impact equal to 186 pounds of TNT. Does E=1/2mv2 ring a bell? Why are you spreading an opinion as your lie?
The 707 had 4 engines because they did not have engines in the 1950s and early 60s which would have enough trust to fly a large jet on two engines. You failed to use logic. I like having four engines over two engines, but the new engines have 50,000 to 63,000 pounds of thrust, the old engines were 12,000 to 19,000 pounds of thrust. Why would you need 4 now when you have 60,000 of thrust per engine; THREE times the thrust?
707 design at impact weight = 263,000 pounds.
Flight 11 impact weight = 283,600 pounds.
Flight 175 impact weight = 277,580 pounds.
Why did you lie?
Pertaining to the planes on 911, and a 707!
Max weight for a 707 = 333,600 pounds
Max weight for a 767 = 395,000 pounds
You posted a lie, a lie you could correct with google. Why do you post lies?
Another lie you googled from idiots. The speed for design impact was 180 mph; a plane trying to land.
You missed the speeds of impact.
Flight 11 impacted at 470 mph.
Flight 175 impacted at 590 mph.
You failed to get anything right on the speeds.
The OP is proof of not understanding Physics, Math, engineering.
The OP is proof someone is using google filtered to give only 911 truth lies.
The OP is proof someone can't use google to look up 707, 767, or the NIST reports.
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