Physic Hub on Instagram: "The Marangoni effect is a physics phenomenon where a liquid starts to flow because of differences in surface tension along its surface. Surface tension can change due to temperature differences or differences in concentration, such as soap, alcohol, or oil mixed into the liquid. Liquids naturally move from areas with lower surface tension toward areas with higher surface tension, and that movement creates visible motion on the surface. A classic example is when soap tou

(Insert): dial up sound effect on Instagram: "Then & Now: Sister, Sister 🤩❤️ Visuals by @junkboxai"