# This is Why Magnetic Monopoles Do Not Exist

You’ve probably heard of Maxwell’s equations, which are a list of four equations that beautifully describe electricity and magnetism. Maxwell’s equations laid the groundwork for a majority of today’s technology that utilises electricity and magnetism, that is radios, wireless communication, motors, engines, generators just to name a few. Each of the four equations are great potential (hahah) blog posts, therefore in this post, I’d be focusing on this one:

Now, as a refresher what do the arrows, dot, B and upside down triangle even mean? B represents the magnetic field, the triangle and the dot together represents something known as “divergence” (we’ll come back to this) and the arrow means that the magnetic field is a vector.

Now, what is “divergence”? To understand divergence, we need to know what a vector field is. A vector field is just a region of space where a certain vector has been assigned to every point in space. A classic example of a vector field is the speed of a fluid moving through space. Sound familiar? Yep, a weather map is a vector field. On weather maps, vectors represent the direction as well as the speed of wind in a particular region of space. As you may have already guessed, B, our magnetic field, can also be represented as a vector field. Here, the vector represents the direction and magnitude of the force experienced by an object capable of feeling the magnetic force at a particular point in space.