What is an example of a zigzag line in real life?

Excuse me, but could you please clarify for me what you mean by a "zigzag line" in real life? Are you referring to a visual pattern that resembles a series of connected zigzag shapes, or is there a more specific context in which you're using this term? If it's the former, there are numerous examples of zigzag lines in our daily lives, such as the path of a mountain road as it winds up and down a hillside, the stripes on a zebra's coat, or even the path that a bee takes as it flies back and forth between flowers. However, if you're looking for a more specific example within a particular field or context, I'd be happy to provide one if you could give me a bit more information.