How a Cannon Could Save the Wild Salmon Population
Read more: http://nationswell.com/salmon-cannon-helps-upstream-migration/#ixzz40SLjLZsk
|Printscreen from video https://www.youtube.com/watch?v=wSBS2F9VXaE|
The advent of hydroelectric dams has disturbed the crucial upstream migration of wild salmon for years. But a company called Whooshh Innovations aims to change that.
Their Salmon Cannon is derived from technology originally designed to assist apple and pear pickers in Washington’s orchards. The “cannon” is really just a tube lined with a “soft material [that] creates a seal around them, generating a vacuum effect that transports [the fish] through at 11-22 mph.”
Protecting the precious cargo is a system of baffles that keep the salmon from banging into the sides of the tube. The end result — launching the salmon upstream and up to 30 feet in the air — has passed safety tests at multiple sites.