Smoke rings

Smoke rings are one of the most common yet fascinating phenomena that occur in nature, oh yes; these toroidal, or donut-shaped vortices, are formed by blood flowing through the human heart, expelled as bubble rings by dolphin and other marine mammals for amusement, and even ejected from the craters of erupting volcanoes!! So how are they formed? It all breaks down to this fundamental principle … Continue reading Smoke rings