Classroom Fluency Timer vs Newton's Cradle, Unbound

Fully fudgeable classroom timer! Timers are arbitrary by definition, and they will go off when they go off, which may not be when you want then to go off. But you can control thiss. Use gestures to discretely add or remove time to clock while it is active. This is very useful for classroom management. This timer has two modes: Standard Timer and Fluency Timer. The Fluency Timer was specifically designed for faciltating Paul Nation's 4/3/2 fluency activity where speakers repeat their ideas under progressively shorter time constraints. - Fully customisable for both the number and length of each segment. - Also functions as a standard countdown timer. - Allows you to add or remove time from the clock while the timer is active to facilitate classroom management. - Won't go to sleep while timer is active.

Explore the physics of Newton's Cradle in a whole new way. Unlike traditional cradles where balls swing in a single line, this simulation lets them move freely in any direction on a horizontal plane. Watch momentum and energy transfer through collisions as you experiment with different configurations. Pull balls to any position and release them to see the physics unfold. Features: - Realistic physics simulation with adjustable parameters - Multiple ball configurations and lattice arrangements - Real-time statistics showing energy and momentum - Simple, intuitive touch controls Perfect for physics students, educators, or anyone curious about classical mechanics.