# New post in Rotation

## Calculate the force needed to move a ball on a horizontal plane?

December 9th, 2022

## Does the Earth's rotation affect an object in the stratosphere?

January 16th, 2020

## Why does earth spin counter-clockwise?

November 20th, 2021

August 1st, 2022

## Why do things spin?

November 6th, 2020

August 1st, 2022

## What happens to the rotational kinetic energy?

September 29th, 2020

## Why does a ping pong ball change direction when I spin it on a table?

December 7th, 2020

## What is the spin rotation operator for spin > 1/2?

December 12th, 2020

March 5th, 2020

April 12th, 2021

## Relationship between torque and angular momentum

November 15th, 2020

## Relation of translational and rotational diffusion of a spherical particle

September 10th, 2020

August 1st, 2022

May 29th, 2020

## How can different points on a rigid body move with different speeds but also be relatively at rest?

September 28th, 2021

## Pauli matrix rotations

August 11th, 2022

## Equivalent Rotation using Baker-Campbell-Hausdorff relation

January 5th, 2021

August 1st, 2022

## How is Chasles' Theorem, that any rigid displacement can be produced by translating along a line and then rotating about the same line, true?

October 25th, 2020

March 10th, 2022

## How does a rotating object cause frame dragging?

January 13th, 2020

April 18th, 2020

## Dynamics of counter-rotating flywheels

October 14th, 2020

August 1st, 2022

April 28th, 2020

## Rotation vs translation

August 11th, 2022

May 2nd, 2020

August 1st, 2022

## Why are the generators of rotation in the 4-dimensional Euclidean space correspond to rotations in a plane?

December 31st, 2020