Virtual technology used to keep track of cows - BBC World Service, People Fixing the World

So the fence line is down along here. We have long grass, a little bit of trampling over here, but over here is the short grass. So this is roughly where the grazing line is. When they go up to the boundary, they will basically start to get a noise, a melody that plays, and it goes up in pitch and scale and volume. The further they get away from where they should be, then if they continue to go past that, they'll receive an electric pulse. Fences are expensive, and they have to be replaced every 10 years, and they stop people being able to access. And from a landscape perspective, it's more enjoyable to look at. Maybe there are ponds that are quite low on water, where they could damage it if they went in there. Late flowering species, we maybe don't want to graze it till sort of September, October time. So it allows us to dynamically choose where the animals are going to be. So this gives us the ability to adapt, change boundary lines, exclude areas. It revolutionizes it for us.