Learning Physics with Professor Mac Blog

Professor Mac is standing on a grey platform with a red arrow showing the pull of Earth acting on him 0

Newton’s Law of Universal Gravitation

I have released my video explaining Newton’s Law of Universal Gravitation. Newton’s Law of Universal Gravitation explains that there is a gravitational force between all objects. This gravitational force is an attractive...

Does Earth accelerate towards you? Professor Mac is jumping from a step and the forces on him and on the Earth are shown by red arrows. 0

Does Earth accelerate towards you?

Does Earth accelerate towards you when you jump from a height? You may find it hard to believe but the answer is yes. You don’t see the acceleration since it is very small, but...

Professor Mac is stepping on to grey scales with two close-up pictures shown to the left. One of the scales shows his weight in kilograms and one in Newtons. 1

What do scales measure?

What do scales measure? The obvious answer is kilograms (or grams). That is what the reading on the scale indicates. However this is not what the scale is measuring. It actually measures force,...

Professor Mac is standing on a grey platform with a red arrow showing the pull of Earth acting on him 0

The force of attraction – Gravity

I’m working on the animation of Professor Mac demonstrating gravity. In the image above the gravity force acting on him is shown by the big red arrow and this is the force of...

A large and a small red apple are falling to the ground. 0

Modelling dropping apples using Blender

Dropping apples is fun! I’m still working on my video which will explain Newton’s law of universal gravitation. As I write this I can hear my computer rendering the first sequence of...

Professor Mac is standing in front of a broken wall lying on the ground with the words "Professor Mac Explains Force" in large yellow text in the background. 0

Creating a title image

  I have been working on creating a suitable intro sequence for my video on Force. After a few attempts at slow motion I decided the best solution would be a dramatic...

Mac is standing in front of a wall which has fractured into pieces on the laboratory floor as it fell over 2

What happened to this wall?

Blender fractured it that’s what! I have been modelling the fracture of a wall for my video explaining the concept of force. For this particular video shot I wanted to demonstrate that...

Professor Mac is examining a block of wood which is sitting on a reflective surface 0

Announcing new series of videos

I have just started working on a new series of videos. These videos will be between one and two minutes in length and quickly explain some basic concepts used in physics. As my...