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What is a pontoon bridge? History of science

By |2017-09-08T09:08:30+00:00September 8th, 2017|Science, West Asia|

A pontoon bridge from the Column of Marcus Aurelius, in Rome A pontoon bridge is a temporary bridge that you make by lining up a lot of boats crossways across the river, and then putting wooden planks over the boats to make a bridge. You can see one in the picture. It's a fast way [...]