👉 Bavin, also known as Bavin's Law, is a scientific principle that describes how the Earth's magnetic field behaves. It was first proposed by French physicist Jean-Baptiste Bavin in 1904 and has been extensively studied by scientists since then. The principle states that the Earth's magnetic field changes over time due to the movement of the Earth's rotation, causing the fields to shift and vary. This variation is known as a "bipolar" effect, which means
