From the course: Practical Engineering
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Canal locks
- Freight transportation is an absolutely essential part of modern life. Maintaining the complex supply chains of raw materials to finished goods requires a seemingly endless amount of hustle and bustle. Millions of tons of freight are moved each day, mainly on trucks and trains, but shipping got its name for a reason, and we still use ships to move a lot of our stuff. One of the main reasons is that it's efficient. In fact, moving a ton of goods the same distance on a boat takes roughly half the amount of energy that it would take by train and roughly a fifth of the energy it would take on a truck. You can prove this to yourself pretty easily. Even heavy stuff is practically effortless to move around once it's floating on water. Of course, shipping by waterway also has its limitations. It's slow for one and not every place that needs goods is accessible by boat. We've overcome this obstacle somewhat through the use of…
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