ELI5: Explain Like I'm 5

Solenoidal vector field

A solenoidal vector field is like a swirling garden hose. The water inside the hose is moving in a curved path and creating a pattern that looks like a coil or a helix. Think of it like someone waving a thin hose in the air in a circular motion - the water inside the hose is going in a circular pattern, creating a solenoidal vector field.