The Hidden Secrets of Niagara Falls Exposed in 1969
In 1969, a massive engineering project stopped the flow of water on the American side of Niagara Falls. The reason was to study the effects of erosion on the rock face and prevent a possible collapse. To do this, they built a huge dam across the Niagara River, diverting most of the water to the Canadian side. For six months, the world got to see what was hidden under the roaring falls for millions of years.
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The skinny
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