🎭 on Instagram: "This post shares a 22-second animation demonstrating structural engineering in stadium design, showing how a grandstand withstands crowd-induced vibrations from synchronized jumping, using a seesaw analogy to illustrate load balancing and resonance avoidance. The video highlights real-world physics principles, such as dynamic loading and damping, supported by studies like those in the Journal of Sound and Vibration (e.g., 2005 research on crowd-structure interaction causing amp