newton s cradle with colorful spheres on a dark background

newtonscradle dark spheres motion balance science toy hanging kinetic black energy colorful pendulum experiment abstract round string momentum movement dynamic concept balancetoy physics swing action minimalism geometric harmony educational motioneffect objectmotion spheredesign toymotion colorfulballs roundshape concepttoy energyswing dynamicdesign physicsconcept toyscience minimaltoy balancemotion newtonlaw darkbackground reflective