Early Modern Period
In the 1670s, the French devised the copper pontoon; after this point, rivers and canals ceased to present significant obstacles. The early modern period in pontoon use was dominated by the wars of the 18th and 19th centuries during which the art and science of pontoon bridging barely changed.
Read more about this topic: Pontoon Bridge
Famous quotes containing the words early, modern and/or period:
“Humanity has passed through a long history of one-sidedness and of a social condition that has always contained the potential of destruction, despite its creative achievements in technology. The great project of our time must be to open the other eye: to see all-sidedly and wholly, to heal and transcend the cleavage between humanity and nature that came with early wisdom.”
—Murray Bookchin (b. 1941)
“How little do the most wonderful inventions of modern times detain us. They insult nature. Every machine, or particular application, seems a slight outrage against universal laws.”
—Henry David Thoreau (18171862)
“I dont like to be idle; in fact, I often feel somewhat guilty unless there is some purpose to what I am doing. But spending a few hoursor a few daysin the woods, swamps or alongside a stream has never seemed to me a waste of time.... I derive special benefit from a period of solitude.”
—Jimmy Carter (James Earl Carter, Jr.)