17 Things You Didn’t Know Were Invented By South Africans

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Written by Keren Mikva
En.Wikipedia.org
En.Wikipedia.org

Dolosse

South African Eric Merrifield created dolosse as a way to protect harbor walls from the erosive crash of the ocean. Thanks to him, almost any waterfront you visit will have these large concrete blocks, each weighing up to 20 tons, lining the shoreline. Their complex geometric shapes help break up wave action and slow erosion.