Precession is the process of a round part in a round hole, rotating with respect to each other, wherein the inner part begins rolling around the circumference of the outer bore, in a direction opposite of rotation. This is caused by too much clearance between them and a radial force on the part that constantly changes direction. The direction of rotation of the inner part is opposite to the direction of rotation of the radial force. In a rotating machine, such as motor, engine, gear train, etc., precession can occur when too much clearance exists between a shaft and a bushing, or between the races and rolling elements in roller and ball bearings. Often a result of wear, inadequate lubrication (too little or too thin), or lack of precision engineering, such precession is usually accompanied by excess vibration and an audible rubbing or buzzing noise. This tends to accelerate the wear process, possibly leading to spalling, galling, or false brinelling (fretting wear) of the contact surfaces. In stationary parts on a rotating object, such as a bolt threaded into a hole, because the sideways, or radial, load constantly shifts position during use, this lateral force translates into a rolling force that moves opposite to the direction of rotation. This can cause threaded parts to either tighten or loosen under a load, depending on the direction of rotation, typically with a force that can far exceed the typical torque of a wrench. For example, this is a common problem in bicycle pedals, thus on nearly all bikes built after the 1930s, the left-side pedal is equipped with left-hand (backwards) threads, to prevent it from unscrewing itself while riding. This precession is a process purely due to contact forces and does not depend on inertia and is not inversely proportional to spin rate. It is completely unrelated to torque-free and torque-induced precession. (Wikipedia).
Simple Harmonic Motion in Trig (Precalculus - Trigonometry 35)
A brief discussion of Simple Harmonic Motion, how it is related to Sine and Cosine, and the functional models it creates. Support: https://www.patreon.com/ProfessorLeonard
From playlist Precalculus - College Algebra/Trigonometry
Basic Properties of Trigonometric Functions (Precalculus - Trigonometry 8)
A discovery of the basic properties of Trigonometric Functions and why they work. Also, a technique for using the period of Trig Functions to simplify angles more than 2pi. Support: https://www.patreon.com/ProfessorLeonard
From playlist Precalculus - College Algebra/Trigonometry
Introduction to Angles (Precalculus - Trigonometry 1)
An introduction to Angles and their usage from standard position on the rectangular coordinate system. Support: https://www.patreon.com/ProfessorLeonard
From playlist Precalculus - College Algebra/Trigonometry
Math 023 Precalculus Day 16: Linear and Quadratic Functions
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From playlist Course 1: Precalculus
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From playlist PreCalculus
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From playlist Pre-Calculus
How to Solve Trigonometric Equations (Precalculus - Trigonometry 22)
A very In-Depth look into solving equations that involve trig functions. We will focus on solving equations without having to use inverse trigonometric functions and relating solutions to the unit circle. Support: https://www.patreon.com/ProfessorLeonard
From playlist Precalculus - College Algebra/Trigonometry
Episode 20: Torques And Gyroscopes - The Mechanical Universe
Episode 20. Torques and Gyroscopes: From spinning tops to the precession of the equinoxes. “The Mechanical Universe,” is a critically-acclaimed series of 52 thirty-minute videos covering the basic topics of an introductory university physics course. Each program in the series opens and c
From playlist The Mechanical Universe
Cross Product of 2 Vectors: Introduction
Link: https://www.geogebra.org/m/RrDv9Wea
From playlist PreCalculus: Dynamic Interactives!
MIT 8.421 Atomic and Optical Physics I, Spring 2014 View the complete course: http://ocw.mit.edu/8-421S14 Instructor: Wolfgang Ketterle In this lecture, the professor discussed harmonic oscillator and precision frequency measurement. License: Creative Commons BY-NC-SA More information at
From playlist MIT 8.421 Atomic and Optical Physics I, Spring 2014
MIT 8.421 Atomic and Optical Physics I, Spring 2014 View the complete course: http://ocw.mit.edu/8-421S14 Instructor: Wolfgang Ketterle In this lecture, the professor reviewed harmonic oscillator, gave two examples about harmonic oscillator and discussed about motion in a rotating magneti
From playlist MIT 8.421 Atomic and Optical Physics I, Spring 2014
Lec 24: Rolling Motion, Gyroscopes | 8.01 Classical Mechanics, Fall 1999 (Walter Lewin)
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From playlist 8.01 Physics I: Classical Mechanics, Fall 1999 (Complete Lectures by Walter Lewin)
Introduction to Solid State Physics, Lecture 16: Magnetic Order
Upper-level undergraduate course taught at the University of Pittsburgh in the Fall 2015 semester by Sergey Frolov. The course is based on Steven Simon's "Oxford Solid State Basics" textbook. Lectures recorded using Panopto, to see them in Panopto viewer follow this link: https://pitt.host
From playlist Introduction to Solid State Physics
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From playlist Freshman Organic Chemistry II with Michael McBride
MIT 8.421 Atomic and Optical Physics I, Spring 2014 View the complete course: http://ocw.mit.edu/8-421S14 Instructor: Wolfgang Ketterle In this lecture, the professor discussed about quantized spin in a magnetic field and Landau-Zener problem. License: Creative Commons BY-NC-SA More info
From playlist MIT 8.421 Atomic and Optical Physics I, Spring 2014
Introduction to Solid State Physics, Lecture 15: Paramagnetism and Diamagnetism
Upper-level undergraduate course taught at the University of Pittsburgh in the Fall 2015 semester by Sergey Frolov. The course is based on Steven Simon's "Oxford Solid State Basics" textbook. Lectures recorded using Panopto, to see them in Panopto viewer follow this link: https://pitt.host
From playlist Introduction to Solid State Physics
8.01x - Lect 24 - Rolling Motion, Gyroscopes, VERY NON-INTUITIVE
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From playlist 8.01x - MIT Physics I: Classical Mechanics
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Link to Lesson Investigation Activity: https://www.geogebra.org/m/TZu6tRwE BGM: Andy Hunter
From playlist PreCalculus: Dynamic Interactives!
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Link: https://www.geogebra.org/m/Vp6p6Wyd
From playlist PreCalculus: Dynamic Interactives!
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From playlist Astrophysics