Demo gravitational forces on a tabletop scale

The Mini Gravity Well is a tabletop gravity model designed to help students visualize gravitational fields and orbital motion. A 2⅓ ft stretchable lycra surface represents space-time, while rolling marbles model how objects move under the influence of gravity. Compact enough for small-group use, this hands-on system makes gravitational attraction and orbital paths visible and interactive in the classroom.

Why Teachers Love It

• Visualizes Curved Space-Time – The flexible lycra surface clearly shows how mass distorts space, helping students connect abstract gravitational models to physical motion.

• Interactive & Inquiry-Ready – Students can vary marble speed, mass placement, and release points to explore orbits, spirals, and gravitational interactions.

• Compact for Small-Group Learning – The 2⅓ ft diameter design fits easily on lab tables, making it ideal for stations, collaborative investigations, and STEM challenges.