Blown sideways
If you've walked past a tower block then you'll know it can be blustery around tall buildings. Tall, slender structures disrupt wind flow at their edges, making it swirl into whirlpools. Wind whirlpools are bad news - they make buildings sway from side to side.
Wind engineers study building aerodynamics to try and smooth out airflow. But nature doesn't make it easy. In strong winds engineers must use more than one trick to control sway.
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