Physics Uncovered on Instagram: "Electrostatic friction is one of the subtle forces that helps objects stay put — even when the surface seems smooth. When two materials come into contact, electrons can transfer between them. This creates tiny patches of positive and negative charge. Those opposite charges attract each other, adding a small “electrostatic grip” on top of normal friction. That’s why things like paper, plastic, or your phone case sometimes cling to a table, a screen, or even your c

BlackAndWhite on Instagram: "Surface tension is a physical phenomenon that occurs due to the cohesive forces between liquid molecules at the surface. In a liquid, molecules attract each other equally in all directions, but those at the surface experience an imbalance—they are pulled inward by neighboring molecules but not outward by the air above. This creates an invisible “film” at the surface that resists external force and minimizes the liquid’s surface area. Surface tension explains why smal