DIYbanter - View Single Post - Reichstag Fi 102 minutes that changed America

Chris Street

wrote:
On 9 Sep, 23:00, Theodore wrote:

I really don't see why people have difficulty with all this. It only
takes one floor to give way and the weight and force of the building
above collapsing onto the next floor causes the pancaking effect.

Yes, if the one floor goes straight down.
If one side of a floor collapses, the floor below will collapse at the
same side; the building falls sideways.

No - that involves the addition of an immense amount of momentum to move
it sideways.

The question remains the same. How would you get one floor to go
straight down to initiate a straight-down collapse of the building? Is
it likely that would happen?

Very - it's the most energetically favoured mode of collapse