Home : Gallery : History : Uses : Behaviour : Maths : Forum : Propulsion : Links : Glossary
Main Forum Page

The Gyroscope Forum

22 August 2019 04:31

Welcome to the gyroscope forum. If you have a question about gyroscopes in general, want to know how they work, or what they can be used for then you can leave your question here for others to answer. You may also be able to help others by answering some of the questions on the site.

Search the forum:  


Asked by: Scott
Subject: Coriolis Force and Coriolis Acceleration
Question: As I recall Coriolis effects are necessary contributors to any rotating body. So, why is there no mention of Coriolis Force or Acceleration in any of the physics treatment of the gyroscope?

2w X r' = Coriolis acceleration
2mw X r' = Coriolis force
Date: 11 October 2006
report abuse

Answers (Ordered by Date)

Answer: Glenn Hawkins - 04/12/2006 22:23:52
 Scott, consider a large rotating platform. Place a bowling ball at the axes. As centrifuge pulls the ball outward, friction between the outward sliding ball and the rotating platform causes the ball to roll in the opposite direction of the platform’s rotation. The inertia of the ball resist rotation, yet the further the ball would slide outward from the axes the faster the speed of the platform and therefore the continuously increasing inertial resistance. The ball then does not travel in a straight line from axes to rim, but curves outward and from the direction of rotation. This is the Coriolis effect, the curve, and is what drives the weather system.

Now, what part of the rotating disk of the gyro is free to move outward toward the rim? No part of course, and this is why the Coriolis effect doesn’t exist in solid rotating disks and therefore neither does it exists in the gyro.

Report Abuse
Add an Answer >>
Website. Copyright © 2019 Glenn Turner. All rights reserved. site info
Do not copy without prior permission. Click here for gyroscope products