Neon glow physics icons set

A set of nine digital neon icons arranged in a 3x3 grid against a dark background. Each icon represents various physical or motion-based concepts, rendered in a striking electric aesthetic using a gradient of hot pink and cyan neon light. The shapes range from simple geometric primitives like cubes and spheres to abstract representations of motion like waves, arrows, and stacked blocks. Each element features a soft luminous outer glow that makes them appear to hover against the deep charcoal background. The design is clean, minimalist, and highly symmetrical, characteristic of modern UI/UX design or game engine asset collections. The lighting creates a high-contrast atmosphere where the glowing lines and edges of each icon are the focal points. The composition is balanced and uniform, with each icon perfectly centered within its respective grid cell, showcasing a consistent visual language through the vibrant color palette and soft neon blur.