Conservation of Momentum
In physics and engineering we use a law called the conservation of momentum to predict the motion of objects which are in a collision. We can also use it to design rocket...
Learning Physics with Professor Mac Blog
Modelling Water in Blender
Modelling water is a requirement for one of my new videos as water is central to the story. The video opens with a large lake surrounded by mountains and a blue sky...
Energy and Work – an Overview
In physics and engineering we use knowledge of a quantity called energy to understand nature and to design efficient machines and improve chemical processes. There are many different forms of energy. Some...
Is There Gravity in Space?
As a child I used to wonder why astronauts could float about in space. I imagined the higher you went the lighter you got. That’s how birds were able to fly I...
Modelling a vehicle in detail for animation
For some time I’ve wanted to develop my modelling skills. This is the process of making virtual objects using software such as Blender. Like most things, the best way to develop these...
Modelling in Blender
I’ve been working for over a year on preparing models for a new Professor Mac video. My normal approach is to keep the modelling as simple as possible so that I may...
The Newton Spring Balance and Hooke’s Law
Welcome to my post on Hooke’s law and the Newton spring balance. I have released a video to bring this information to life and you may watch this at the bottom of the post. So what...
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?
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...