How Locks work
Locks allow boats to get from one side of the canal/river to another. It effectively controls the water levels of the canal, lifting them up or down to enable passage to the next area of the canal.
https://canalrivertrust.org.uk/news-and-views/features/how-do-locks-work
http://www.schoolshistory.org.uk/IndustrialRevolution/images/canals2.jpg
http://www.schoolshistory.org.uk/IndustrialRevolution/images/canals2.jpg
How Aqueducts work
Aqueducts are a Roman invention in which they allowed themselves to control their water sources. the Romans lay underground pipes and constructed siphons throughout the landscape. Workers dug winding channels underground and created networks of water pipes to carry water from the source lake or basin into Rome. The pipes were typically built in concrete, but were sometimes made of lead.
When the pipes had to span a valley, they built a siphon underground: a vast dip in the land that caused the water to drop so quickly it had enough momentum to make it uphill. Siphons are part of the mechanism that makes toilets flush as well.
When the pipes had to span a valley, they built a siphon underground: a vast dip in the land that caused the water to drop so quickly it had enough momentum to make it uphill. Siphons are part of the mechanism that makes toilets flush as well.