Final answer:
The question concerns the oscillation period of mid-rise buildings. It is in the domain of civil and structural engineering and articulates the dynamic behavior of buildings in response to environmental factors.
Step-by-step explanation:
The question refers to the oscillation period of buildings, which relates to the field of structural engineering, specifically the study of dynamic responses of structures such as skyscrapers to environmental forces. Buildings between 10-20 stories typically have larger periods of oscillation compared to shorter structures due to their height and flexibility. The pendulum systems discussed in the context of swaying skyscrapers are a type of structural control mechanism used to mitigate these oscillations.
Skyscrapers in urban environments, such as those designed with the influence of Chicago's architectural innovations or the 1916 Setback Law in New York, not only had to meet aesthetic and functional requirements but also adhere to safety and comfort levels by countering the sway caused by wind and seismic activities.