The power of the tides figures in today's Geo Quiz. First, find Northern Ireland on a map.
OK, now zoom into the spot where Strangford Lough connects to the sea.
Strangford Lough: photo credit www.flickr.com/photos/tateweb/
Which sea is it?
That's the question for today's quiz.
Strangford Lough is an inlet that's mostly enclosed by the Ards Peninsula.
When the tides change -- seawater rushes in and out of the Lough through a half-mile opening called "the narrows."
An energy technology company hopes to use turbines to capitalize on that tidal action.
â€œMost people have seen wind turbines and they'll be aware that they face the wind and garner the kinetic energy of the wind, we've got a fast flowing tide and a big turbine, or 2 big turbines turning in that tide.â€
We'll hear more about those turbines.
First you've got to name the sea that rushes in and out of Northern Ireland's Strangford Lough.
The answer's here...