베이루트 대폭발은 핵폭탄 제외 역사상 가장 강력한 폭발 VIDEO: Beirut blast was one of the biggest non-nuclear explosions ever


Beirut blast was one of the biggest non-nuclear explosions ever

By Mindy Weisberger - Senior Writer 6 hours ago


Energy released was enough to power over 100 homes for a year.


On Aug. 4, a series of massive explosions rocked the port of Beirut in Lebanon, and the biggest was one of the most powerful blasts in history that was not produced by a nuclear bomb, according to a new analysis.




Preliminary yield estimation of the 2020 Beirut explosion using video footage from social media. Numbers indicate filming locations of the 16 videos used to estimate the yield of the 2020 Beirut explosion. Satellite imagery from Google Earth (Jan. 2020).

(Image: © S. E. Rigby, T. J. Lodge, S. Alotaibi, A. D. Barr, S. D. Clarke, G. S. Langdon & A. Tyas, Shock Waves 2020: https://doi.org/10.1007/s00193-020-00970-z)


 

베이루트 대폭발...핵폭탄 제외 역사상 가장 강력한 폭발 분석


히로시마 투하 핵폭탄의 약 5% 강도


    지난 8월 4일 레바논 베이루트 항을 뒤흔든 초대형 폭발이 잇따라 발생했으며, 이 폭발은 핵폭탄에 의해 발생하지 않은 역사상 가장 강력한 폭발 중 하나라는 분석이 나왔다.




이렇게 큰 폭발이 이렇게 잘 문서화된 적은 일찍이 없었다. 많은 목격자들이 소셜미디어에 끔찍한 장면을 공유하며 폭발 순간과 그 이후의 폭발물 파동을 동영상으로 촬영했다.


최근 영국 셰필드 대학교의 엔지니어들이 폭발 주변의 다른 장소에서 찍은 16개의 영상들을 분석했고, 이 시각적 증거를 통해 연구원들은 폭발의 강도를 추정할 수 있었다고, 그들은 새로운 연구에서 보고했다.


연구진은 영상으로부터 38개의 데이터 포인트를 수집해 오디오 신호, 프레임별 영상 분석, 폭발 화구의 크기 등을 토대로 폭발파의 도착을 정확히 파악했다.


기술자들은 폭발성 화학 화합물인 트리니트로톨루엔(TNT)의 550~1200t(500~1100mt)의 폭발에 해당한다는 사실을 밝혀냈다. 이는 1945년 8월 6일 미국이 히로시마에 투하한 핵폭탄의 약 5%의 강도였다. 미 에너지부에 따르면 베이루트 폭발로 1시간 동안 300만개 이상의 태양광 패널이 생산하는 만큼의 에너지, 412개의 풍력 터빈, 1억1000만개의 LED가 방출됐다.


이는 약 1년 동안 100가구에 전기를 공급하기에 충분한 전력이라고 대학 대표들은 성명을 통해 말했다.


베이루트 전역이 폭발 영향권에 들어갔다. 폭발 위력은 전술핵과 동급으로 치명적인 파괴가 발생한 1 km 내는 물론이고, 10 km 떨어진 베이루트 국제공항마저 천장이 무너지고 유리창이 깨지는 등 피해를 입었다. 폭발 지점의 주변 도로에 있는 차량들의 대다수는 파손되거나 전복되었다. 1km 떨어진 베이루트 시내의 세인트 조지 병원[13]도 2차 폭발로 인해 간호사 4명, 인공 호흡기 미작동으로 환자 15명이 숨졌으며 모든 층이 피해를 입고 전기가 끊겼기 때문에 몰려드는 부상자를 주차장에서 치료하고 있다. 결국 병원은 폐쇄됐다. 위키백과




황기철 콘페이퍼 에디터

Ki Chul Hwang Conpaper editor curator


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Never before had such a large explosion been so well-documented. Many witnesses recorded the moment of the detonation and the subsequent blast wave on video, sharing the terrifying scenes on social media. 


Recently, engineers at the University of Sheffield in the United Kingdom analyzed 16 such videos that were captured from different locations around the explosion and had an unobstructed view of the event and its aftermath. From this visual evidence, the researchers were then able to estimate the strength of the explosion, they reported in a new study.


The researchers collected 38 data points from the videos, pinpointing the arrival of the blast wave based on audio cues, frame-by-frame video analysis, and the size of the explosion's fireball. 


The engineers found that the cataclysm was equivalent to the detonation of 550 to 1,200 tons (500 to 1,100 metric tons) of the explosive chemical compound trinitrotoluene (TNT) — about 5% the strength of the nuclear bomb that the U.S. dropped on Hiroshima on Aug. 6, 1945. In a matter of milliseconds, the Beirut explosion released approximately 1 gigawatt hour (GWh) of energy, or as much energy as is produced in one hour by more than 3 million solar panels; 412 wind turbines; or 110 million LEDs, according to the U.S. Department of Energy. 




That's enough power to provide electricity to over 100 homes for about a year, university representatives said in a statement.


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The blasts, which killed at least 180 people and injured more than 6,000, were caused by a fire that ignited a 2,750-ton (2,500-metric-ton) stockpile of highly explosive ammonium nitrate that had been stored at the port, Live Science previously reported. A massive mushroom cloud that rose from the wreckage — made up of toxic nitrogen dioxide gas — formed after the solid ammonium nitrate decomposed into gases and water vapor.


The explosion damaged about half the buildings in Beirut, displacing more than 250,000 people; and silos holding 85% of the country's wheat stores were either destroyed or were so badly damaged that the grain was no longer edible, The New York Times reported on Aug. 7.


"After seeing the events unfold, we wanted to use our expertise in blast engineering to help understand what had happened in Beirut and provide data that could be used to help prepare for, and save lives in such events should they ever happen again," lead study author Sam Rigby, a senior lecturer in Blast and Impact Engineering at the University of Sheffield, said in the statement. 


"By understanding more about the power of large-scale accidental explosions like the one that occurred in Beirut, we can develop more accurate predictions of how different buildings will be affected, and the types of injuries there are likely to be at different distances from the blast," Rigby said.


The findings were published online Sept. 22 in the journal Shock Waves.


Originally published on Live Science.

https://www.livescience.com/beirut-explosion-biggest-non-nuclear.html


Stunning video shows explosions just minutes ago at Beirut port




16 Biggest Explosions throughout History 

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