👉 The term "diuturnal" is a scientific term that describes the periodicity of Earth's rotation and its influence on weather patterns. It refers to the occurrence of two distinct seasons, each lasting for approximately 365 days, as seen from Earth's surface. This cycle is known as the diurnal cycle, and it has been observed in various geographical regions around the world. The term "diuturnal" was first introduced by astronomer James Bradley in his work on the diurnal
