Most of us know that math is used not only to torment students, but primarily to help model and make predictions for use in application.  This article, How Particular Accelerator Helped Me Fix My Wi-Fi, discusses and reinforces that mathematics helps a great deal in not only behaviors of plasma, how he used those principles to help with a bit more personal to him, his Wi-Fi connection in his house.  As a side note, he made an app, yes an app, to model signal strength in his "flat" to determine where to put his router, which is also linked in the article.