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Yes, many did. The Great Pyramid and others that have survived, did so for a reason. Their shape made them more sturdy over time and were not the first design. Many steppe pyramids were built but were too steep and as the corners eroded, the whole pyramid fell under its own wieght. They were built too steep and did not have the base structure as seen in the great pyramid.
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What did Otis invent?
Elijah Otis invented elevator safety. Back then the elevators would brake down and fall to the ground, which caused the people to die. Otis invented a back up so if the elevator broke down you were safe.
Does voltage forces electrical energy though a circuit?
You could say yes. The usual analogy is the height of a water fall relative to the flow of the water in a stream. If the potential difference is great it is similar to a high fall since the height difference is what drives the water down the falls.
Can a lift fall?
Sure, if the cables break, it can fall.
Why do high rise buildings have a broad foundation?
High-rise buildings have wide foundations to help spread their weight evenly and stay stable. This is especially important in areas where the ground is soft or not very solid.
What is the correct fall for 4inch drain pipes is it 1 inch or 2 inches per meter fall?
The correct fall for a 4 inch/100mm foul drain is 12.5mm per meter.. or 10mm per meter on a surface water drain
