What happens when you combine 200 liters of Diet Coke and over 500 Mentos mints? It's amazing and completely insane. The first part of this video demonstrates a simple geyser, and the second part sho ...
Designing a sundial for the top of the earth, the North Pole, is easy. Move to another latitude and it becomes more difficult. This video looks at the issues around sundials and latitudes. ...
This video explains how to set your sundial to the correct time. Check the time and follow the instructions on the video. As the earth turns you will be able to see how the shadow progresses. ...
This video explains the science behind a trebuchet. The trebuchet is a medieval machine designed to throw objects at or into castles. This video explains that the gravitational potential energy stored ...
This simple weather instrument is an example of electronic instrumentation, it uses a swinging pendulum conductor and four LEDs to indicate wind direction. This simple, but sophisticated, device is su ...
This video uses working simple machines to demonstrate how to calculate mechanical advantage. Suitable for any school program involving simple machines. Demonstrates pulley systems including a chain b ...
Pulleys are simple machines. A knowledge of pulleys can be very useful. This short video shows how to use a pulley to increase the pulling power of a winch. Supports the Force, Work and Energy compone ...
An arch is a structure commonly used in bridges and buildings. This video presents examples of the arch as a structural unit and introduces the concepts of compression and tension. Provides support fo ...
This video explains how to construct a model of a geodesic dome from paper and shows how to draw triangles with a compass and straight edge. ...
This video explains electricity as the flow of atomic particles called electrons. Animations demonstrate electron flow. Batteries are described as chemical devices designed to create electron flow. Te ...