In a state of bewilderment one fine day, I asked a group of three mechanical engineers at this company where I was then employed if they could please explain to me the concept of “moment of inertia”.

Bring up the subject of time, torque, and inertia with a mechanical engineer, and his or her eyes are likely to light up. Most engineers, during their undergraduate career, get a firm grounding in ...

"Learn how to calculate the moment of inertia for both hollow and solid spheres in this physics tutorial! We’ll walk you through the process of finding the moment of inertia for each type of sphere, ...

The case of a pulsating-load testing machine shows how to ballpark qualities that are important for deploying electric motors. Crankshafts in running internal-combustion engines pulsate as well as ...

When I was talking about balancing a stick, I mentioned the moment of inertia. Moment of inertia is different than mass, but I like to call it the “rotational mass”. What does mass do? Things with ...