I came across the following Youtube video which shows the controlled demolition of a chimney.
The construction of the chimney appears to be reinforced concrete, with the reinforcing bars in both the axial and circumferential directions.
From the video, around the 0:24s mark, you can see some explosions at the base of the chimney, to the right of the chimney, which then collapses to the right. Can someone please explain how the location of the charges determines the direction of the fall?
How does the type/construction of the building, the explosives used (detcord, cutting charges etc.), charge placement (placed in drilled holes, superficial to structure, etc.), prevailing wind (yikes!), pre-existing damage to the building, affect the outcome?