Ask any engineer what the velocity of a point on a rigidbody is, and he will correctly say that it is the timerate of change of a linear position vector. Ask anyengineer what angular velocity is, and ...

Cross-flow turbines, also known as vertical-axis turbines, are attractive for power generation from wind and water currents. Some cross-flow turbine designs optimize unsteady fluid forces and maximize ...

I love using seemingly random data to figure out stuff I wouldn't otherwise know. You can do this with all kinds of things, but in this example, I use video that I recorded from an airplane to figure ...

If the angular velocity of a link in a mechanism is zero, does this imply that the angular acceleration of that link is also zero? The short answer to that question is NO. If ω(t) represents the ...

Learn the fundamentals of physics with this Understanding Rotational Motion and Kinematics Beginner Physics Guide—a clear and easy introduction to how objects rotate and move in circular paths. This ...

Introduction You might have seen figure skaters spinning around quickly and then tucking their arms to spin faster—or opening them to spin more slowly. This happens, thanks to a physics concept known ...