Quantum coin flipping is the fairest way to flip a coin over the phone. How does it work?!

What is the closest to the end of a 93 g uniform meterstick you can place a 200.0 g object and have the system stay balanced? The meterstick is supported at the 20.0 cm and 80.0 cm marks.

Demonstrating and measuring how a helmet changes impulse, impact force and change in time during a collision.

For billions of years, the Earth and the Moon have danced together. Since the Apollo era, scientists have used lasers — a technology then in its infancy — to measure their waltz. Lasers have since played increasingly important roles in...

Using Uniformly Accelerated Motion (UAM) as a framework to learn about Uniformly Angularly Accelerated Motion (UαM). Just like UAM, UαM has 5 variables, 4 equations and if you know 3 of the UαM variables, you can determine the other 2...

Now that we have learned about conservation of momentum, let’s apply what we have learned to an “explosion”. Okay, it’s really just the nerd-a-pult launching a ball while on momentum carts.

A rope is wrapped around a bicycle wheel with a rotational inertia of 0.68MR^2. The wheel is released from rest and allowed to descend without slipping as the rope unwinds from the wheel. In terms of g, determine the acceleration of the...

A feature from NASA’s Ames Research Center in Silicon Valley originally posted on October 19, 2016.

In this video, I explain and demonstrate the lever test, a special test used in the assessment of ACL injuries. More specifically, we cover the test procedure, interpretation of results, and psychometrics.

This Video Explains Freedom of Assembly or Association

When the women of Richmond, Virginia couldn’t afford to buy bread during the American Civil War, they incited the largest civil disturbance the Confederacy had ever seen.

How did students organize with no social media like we have today? How was the next protest handled compared to the previous one? Protest, Spirit of the People, Part 4

Demonstrating the physics of dropping a bucket of water with two holes in it.

I demonstrate that the magnitude of the force normal and force of gravity acting on an object are not always the same, even though many students want to assume this is true. This is an example of where showing your work is incredibly...

A vehicle uniformly accelerates from rest to 3.0 x 10^1 km/hr in 9.25 seconds and 42 meters. Determine the average drag force acting on the vehicle.

In this video, I explain and demonstrate Lachman's test, a special test used in the assessment of ACL injuries. More specifically, we will cover the procedure, interpretation of results, and its psychometric properties.

Can you balance an egg on the equinox? Yes, but it's a myth that implies that that is the only time you can do it. You can balance an egg on any day of the year. It's about practice, patience, and what kind of tabletop you are trying to...

A book is resting on a board. One end of the board is slowly raised. The book starts to slide when the incline angle is 15°. What is the coefficient of static friction between the book and the incline?

You place a book on a 14° incline and then let go of the book. If the book takes 2.05 seconds to travel 0.78 meters, what is the coefficient of kinetic friction between the book and the incline?

In this video, I explain and demonstrate the Roos test (Elevated Arm Stress Test), one special test used in the diagnosis of Thoracic Outlet Syndrome (TOS). More specifically, we cover the rationale, interpretation of results, and...

In this video, we explore gait patterns that can be done with bilateral assistive devices including axillary crutches, straight canes, forearm and Lofstrand crutches (axillary crutches on demonstration here). More specifically, we will...

In this video, I demonstrate and explain correct technique for the sidelying hip ABD along with one good progression of the exercise.

In this video, I demonstrate and explain correct technique for the prone hip EXTension along with a couple good progressions of the exercise.

In this video, I explain and demonstrate two special tests used in the diagnosis of a high ankle sprain: the external rotation test and the syndesmotic squeeze.