Device from 234 B.C. lifts fish over barriers while blocking invaders, study finds
Great Lakes Echo,
The U.S. Geological Survey watches from a boat as the Archimedes screw is installed.
The U.S. Geological Survey watches from a boat as the Archimedes screw is installed.
A recent study published in Water demonstrates using the Archimedes screw, a mechanism originating from 234 BCE, to manage fish…