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The national park of Koli in eastern Finland is home to a famous, 34-metre-long crevice cave known as Pirunkirkko, or Devil's Church in English. A new study investigates the acoustics of the Devil ...
The national park of Koli in eastern Finland is home to a famous, 34-metre-long crevice cave known as Pirunkirkko, or Devil’s Church in English. A new study investigates the acoustics of the ...
The national park of Koli in eastern Finland is home to a famous, 34-meter-long crevice cave known as Pirunkirkko, or Devil's Church in English. In folklore, this crevice cave was known as a place ...
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