OBSTRUCTIONS IN RIVERS.
Major Lauer, an Austrian engineer, has made some experiments at Krems, on the Danube, which have excited great attention. He placed a cylinder loaded with dynamite upon the surface of the rock and exploded it by an electric current. However small the quantity above the cylinders the rock was so crushed that it was easily swept away by the tide. It is estimated that the adoption of this method will reduce the cost of removing submerged rocks 40 per cent.
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Patea Mail, 9 March 1882, Page 3
Word Count
83OBSTRUCTIONS IN RIVERS. Patea Mail, 9 March 1882, Page 3
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