Tightlining is a makeup technique that involves applying eyeliner to the upper waterline (that thin strip of skin right beneath your upper lashes, where the roots of your lashes meet your eyelid).

Learn how to make fun and colorful 3D doodles using Paint 3D. This video explores the basic tools, shapes, and techniques to build playful abstract compositions.

Rose petals' unique shapes come from stress during growth. Differential growth and mechanical stresses create curled edges. Research shows petals violate a mathematical condition, causing stress.