Spring is often associated with ripe and luscious tomatoes off the vine, watercolor tulips, and the refreshing splash of rainfall. What might not come to mind, however, is the term, "Vernal Equinox," or the time of year when the sun's rays transcend above the equator into the northern hemisphere to birth the new season.
But exactly how does this astronomical phenomenon pave the way for springtime activities? Is there any real logic behind the idea of spring fever? These handpicked videos will get you thinking about the science of all things spring.