e Folding vs Two Links Double Pendulum

This is the best app if you start paper folding activity. It's even better than following a step-by-step model with a crap paper in your hands. On each step, you'll clearly see the line where to fold your e-paper exactly. The app will show you where to put your finger and the direction to slide it. The great advantage is you don't need to longly stare at a fixed image and try to understand how to fold for going to the next step. All the steps are clearly shown on your screen, each gesture can be seen in a quick glance. After the last step of folding, take a pen and a color, draw and paint on your folding as shown on the models, or create your own drawings. Check out now this best paper folding simulation.

Two Links brings one of physics' most beautiful chaotic systems to life. Watch a double pendulum swing, twist, and spiral in real-time 3D — then place it on your floor in Augmented Reality and walk around it. Features • Real-time double pendulum physics (RK4 integration) • AR mode — anchor the pendulum on any flat surface • Orbit the 3D scene freely or let it run hands-free • Adjust link length, pivot position, density, and color • Particle trail from the second link tip • Night sky environment with the Moon and Earth • Pause, shuffle, and watch the chaos reset