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I came across an interesting article online about the loudest sound recorded in the past. I would like to share some of the interesting points here. The article said it was the huge eruption in Krakatoa where is an island in Indonesia and is located between Java Island and Sumatra Island. It happened in 1883 and the noise recorded 172 decibels [dB] at the point where is about 160 km far from the island. Personally, I have no idea how much loud it is and googled it for your reference. 120 dB: the engine's sound when we are very close the airplane 110 dB: when someone is honking you within 2 meters 100 dB: when you are under the railway bride The loudness exists limit and is 194 dB in the air. It seems that the sound pressure more than 194dB can't pass through air. The sound is called the "Shock Wave" and it pushes air with high pressure explosively. The eruption in Krakatoa was almost the same thing. An air with high pressure generated blast wave and because of it fisherman's eardrums burst, who was about 40 miles far away from the Island. According to a record by each observatory across the world, it is thought that the compression wave generated in Krakatoa traveled around the Earth three or four times over 5 days. "The Scream" by Munch is one of super well-known paintings in the world. It looks like it has an eerie background color. Actally, there is a theory that the background was modeled after mysterious Sun color just after the Krakatoa's eruption. The eruption occurred in 1883, on the other hand, Munch draw the "The Scream" in 1893. So, the eruption was an inspiration to Munch's works. This kind of disaster is not just about other people. I really hope this kind of things won't happen again.
13 de jun de 2026 08:21
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Pratique seu aprendizado através de audio/escrita.

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