Technical aspects, which propagandists do not want people to look.
1- Fire & Heat travels from bottom up.
2- Petrol burn very fast, what we see burning is insulations clothing, furniture..
3- There are always automatic fire protection systems.
4- Buildings structure of reinforced concrete is non collapsible, just because of common building fire.
5- Structure of twin towers, was strongest of them all.
1.) Fire and Heat dissipate upward yes, but
WEIGHT dissipate downward. Grenfell Tower was caught up in fire at 2/3 floor, which mean the fire weaken point have 21-23 story of concrete on top of the level that was on that floor. On the other hand, Both Towers was hit at the 93rd and 73rd floor directly, on a 116 story building, set aside the drag coefficient that suffer up the wind direction(Wind also pushes the tower structure and further weaken them, the taller the structure was, the longer the moment, hence a larger force pulling the building from side to side.) The rubble (the concrete) alone would have an extra 1000 tons to 3600 tons of weight sitting on World Trade Center rather than the Grenfell tower (5 floor to 43 floor more, each floor have 150 tons concrete on average), also put into the effect that the plane did damage the internal structure inside World Trade Center and the fire did not damage the internal structure of Grenfell tower, It's no surprise Grenfell did not collapse.
2.) Airliner does not use Petrol, they use Jet Fuel, Jet-A to be exact, which is higher density than Petrol, and hence can burn longer, and will not evaporate easily. If we use Petrol instead of Jet-A, the engine will not start, as the engine need to be able to rev to certain ram before they can produce lift, that is why most airline do not have power setting lower than 65% engine rev. That is called ideal thrust.
3.) Considering World Trade Center is a sealed structure (The window is not opened) to a open structure, a effect called Backdraft is created in a closed/sealed environment, which is by adding a sudden influx of air into a burning flame will lead to the fire reaching a higher burning point and explosion power.
Another thing about sealed environment is that fire is localized in a sealed environment compare to an open environment, because wind spread fire, opening window allow breeze to move thru a fire will spread a fire, which in this case is better because the temperature is even when a fire is spread out. Accord to Brinks Fire Safety, concentrated fire can leads to 5 times the burning point than a spread fire, because the fire does not move, it induce more heat as the fire burn, until it was starve of oxygen or carry away by wind.
4.) This is a common misconception, heat can damage concrete by "Cracking" and weaken the concrete. TO understand how this happen you need to first understand how concrete are made, cement was mixed with water to sand and aggregator to make concrete, there are certain percentage of water inside a concrete slab, depending on the grade, water content may varies.
When we burn a concrete slab, we effectively vaporize the water content inside a concrete slab, but since it was mixed with sand and aggregator, the steam "from burning water" would be trap between layer of cement, and that steam would kept expanding by heat and eventually the pressure would crack open a concrete slab allowing the steam to escape, burning for any amount of time can damage a reinforced concrete slab. Again, depending on the grade of concrete. Damages varies.
5.) Another misconception, any structure that tall into the sky would have to be flexible instead of rigid, meaning they can be bend instead of standing tall, otherwise, the wind and earth movement (earth move everyday) would have pull down a tall building.
Therefore, a tall building would have to be structurally weaker than a lower/smaller building to allow movement of the building to adjust the force with wind gust pushing and earth movement.
In your over excitement, you are overlooking that London fire was continuous for 12 hours and even more.
Sure, its always building material which catches fire.
Except concrete, every thing is combustible in building fire.
Still you can't blame aluminum cladding as a cause of fire, although it was falling off after melting.
There are fire extinguishing systems in any building, due to human negligence, they may fail in one building but not in two. Where as building 7 collapsed without fire and impact, as you claim falsely.
Building 7 was damaged by debris from North Tower, and weakening a load bearing post on the south under the 44th floor, structurally, it could have been the same damage on North Tower itself, (Dropping 73 floor would most likely hit terminal velocity)
WTC 1,2 and 7 does not collapse because of fire, it collapse because it was structurally weaken, fire alone cannot do much damage if the foundation is undamaged but an explosion inside a building could lead to internal structural damage.
In reality, I don't know if you had any demolition training, if you have, you will know this. To collapse something, you need to take out a load bearing parts, allowing the weight of the structure to collapse on itself, a fire, generally does not weaken load bearing part, except in the time when it was burn to a melting point or the load bearing part is faulty. Building do not generally collapse because of burning alone, even WTC was on fire in 1975, it does not collapse, it only collapse unless the load bearing parts is damaged, that is why you always put charges on a load bearing beam if you want a structure to collapse.
