You may not always pay attention to them, when once you notice their existence, they will be the only thing you see when looking up. These red, orange and white spheres that just hang from power lines like Christmas lights are pretty ingenious and they actually serve a specific purpose.
They also have a perfect space between them in order to make it work. It definitely isn’t for decoration only and achieves a real goal, which you might not guess at first. In fact, you will soon realise that they are necessary elements and that they might even save lives.