Giant roof tubes turn soccer cheers into thunder
Engineers turned a stadium into a massive musical instrument, using 4-meter tubes to synchronize 52,000 voices into a rhythmic roar that mimics the power of a storm.
When the crowd at Istanbul's Ali Sami Yen Stadium begins to chant, the building itself starts to help them. Rather than letting the sound dissipate into the air, the roof is designed with specialized four-meter tubes that act like the pipes of a massive cathedral organ. These tubes are precisely tuned to eighty-five hertz, which is the exact frequency where the human voice naturally vibrates. This creates resonance, a phenomenon where sound waves of the same frequency stack on top of one another, effectively doubling the volume of the crowd's roars into a physical wall of noise reaching 110 decibels.