The fact that light carries both linear and angular momentum is well-known to physicists. One application of the linear momentum of light is for optical tweezers, in which the refraction of a laser ...

The key concept here is angular momentum. Angular momentum is a lot like normal linear momentum except that it is totally different. In the simple, algebra-based course model angular momentum can be ...

In an introductory physics course, there are three big ideas. There is the work-energy principle, the momentum principle and then the angular momentum principle. I'll skip the work-energy principle ...

A survey course for students majoring in sound recording technology. Topics covered include:one and two dimensional motion, Newton's Laws of dynamics, statics, circular motion, work and energy, linear ...

Quantum mechanics in three dimensions. translational and rotational invariance and conservation of linear and angular momentum, center-of-mass coordinates. Position-space representation of the angular ...

An international team of physicists has simultaneously measured the angular momentum and torque exerted by acoustic waves for the first time. It found that this ratio agrees exactly with the predicted ...

It’s a question I’m sure was keeping you up at night: can you make an object spin with a sound wave? The answer, generally speaking, used to be no. Now, though, mechanical engineers have taken a look ...

Researchers have created a nano-sized light mill motor powerful enough to drive micro-sized disks. With rotational speed and direction controlled by the frequency of incident light waves, this new ...