Gyroscope (3 Axis) - ME-8960



The unique low friction and open design of PASCO's 3-Axis Gyroscope allow studies of rotational motion never before possible with a commercial unit. The completely open design lets students stop precession by grabbing the vertical shaft and observing that the gyroscope dips. Rotational mathematics predicts the dipping action, but it could never be confirmed with traditional enclosed units.


With Teacher's Guide and Sample Data.

  • Precession
  • Demo: Counter-rotating Disks
  • Demo: Precession
  • Demo: Nutation


  • Low Friction: The disk takes almost 6 minutes to slow to half of its original speed due to low-friction bearings in the gyroscope axle and vertical shaft.
  • Accurate Angle Indicator: Measures from 30° to 140° and is easily read to the nearest degree. A retractable stop acts as a marker during experiments.
  • Easy Timing: Low rotation speeds allow measurement of angular speed by counting revolutions and using a stopwatch.
  • Easy Balancing: Two counterweights allow coarse and fine balance adjustment.
  • Large Inertia Disk: With the large rotational inertia of the disk, PASCO's gyroscope generates precession rates similar to smaller, enclosed gyroscopes. The slow rotation speed of PASCO's disk lets students study fast as well as slow precession and use a stopwatch to make measurements.

How It Works

The disk is spun by wrapping a string around the pulley and pulling. Or the disks can be spun by hand. Add mass to either end of the gyroscope and it responds with a predictable precession. Many features make this an exceptional demonstration tool for rotational motion concepts.

With the Mounting Bracket (ME-8963) and the "A"-base Rotational Adapter (CI-6690), the PASCO Gyroscope becomes a quantitative instrument for advanced rotational motion experiments. With two Rotary Motion Sensors, students obtain a graphical picture of the Gyroscope's nutation and precession motions.

Buying Guide

Metal Knobs and Feet
Replacement Parts
Metal Knobs and Feet   ME-8954