Thursday, July 5, 2012

Mysterious Shaking of a Skyscraper.

A 39 story shopping mall in Gwangjin-gu, Seoul shook violently for 10 minutes on July 5, 2011 causing the entire building to be evacuated for two days. It appears that the vibration was setup by Taebo exercises in a fitness center in the building. The “taebo” is an aerobic sport which is a mixture of taekwondo and boxing.

When an external vibration hits the resonance frequency of a certain object, the vibration is amplified and causes excess shaking even from slight movement.”
 
39 쇼핑 2011 7 5 발생 2 일에 대피를 건물 전체에 10 동안 심하게 서울 흔드는 광진구에서 이야기. 진동 피트 니스 센터 건물에서 Taebo 운동에 의해 설치 했다 나타납니다. "Taebo" 에어로빅 스포츠인 태권도 복싱의 혼합물입니다.  "외부 진동 특정 개체의 공명 주파수, 안타 진동 증폭 초과 떨고 심지어 약간의 운동에서에서 발생."



Reference and photo credit: Suh-young, Yun, Aerobic exercise blamed for tremor at Techno-Mart, Korea Times. July 19, 2011
 
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