Click here to download the catalog as a PDF file. To view this site you need Adobe Flash Player and your browser must allow javaScripts. Go here to get the latest Flash Player. Fully-Involved Physics — when the experimenters become part of the experiment! Inclined Plane A versatile inclined plane that attaches easily to a stand (not included) and adjusts to any height. It is 100 cm long and 13.5 cm wide to accommodate your collection of cars, balls, blocks, and masses, and includes a pulley at the top for equilibrium experiments. Sturdy steel construction stands up to heavy use. Precision pulley and P3-3541 Inclined Plane $59 roller assembly helps keep data collection errors to a minimum. NEW! Rotational Inertia In this classic discrepant event, two objects of equal mass and equal radius roll down an incline. One is a solid disk and the other is a ring. Which reaches the bottom first? Students must consider distribution of mass, how it affects rotational inertia, and how inertia affects motion. 15 cm diameter. P3-3540 Ring and Disk $25 Why do bicycles stay upright? Dramatically demonstrate angular momentum with our Bicycle Wheel Gyroscope. Experience angular momentum for yourself! Spin the bicycle wheel, hold the handles, and try to change its axis of rotation. The faster it spins, the harder it is to tip over! Stand on our Rotating Platform to experiment with gyroscopic precession and learn how satellites steer. The Rotating Platform can also be used with hand weights to study rotational inertia, conservation of angular momentum, and action-reaction. Platform diameter: 40 cm Wheel diameter: 60.9 cm P3-3507 P3-3510 Deluxe Bicycle Wheel Rotating Platform $79 $49 Dual Accelerometers dramatically demonstrate the centripetal acceleration at two different radii. Use our Rotating Platform to explore the concepts of gyroscopic precession, rotational inertia, action-reaction and more. Classic Physics Cool Tools for Rotational Motion Here’s another option for your bicycle wheel demos and more! This sturdy lab stool has a rotating seat that allows the student to sit down for the classic demonstrations of angular momentum. Stool disassembles for easy storage. 46 x 46 cm base, 30 cm diameter seat, 46 cm tall. P3-3610 Rotating Lab Stool $95 For a more quantitative study, add our Rotational Accelerometer Accessory. It holds two liquid Accelerometers (included) and fits perfectly in a hole in the stool seat, allowing students to see the magnitude and direction of the acceleration at two points on the rotational radius! Bar is 87 cm long. We’ll also include two 2-lb. weights for ice-skater-style spins. P3-3612 18 Rotational Accelerometer Accessory $134 1-800-367-6695