How to crush a soda can using the power of air. Continue reading
Cartesian divers are great toys that can be used to teach important science concepts. Several variations of Cartesian divers are on the market. Imagine that you and your classmates are members of a research and development team at a toy company and are challenged to design a new 7 Cartesian diver toy. Continue reading
The universe is bustling with matter and energy. Even in the vast, apparent emptiness of intergalactic space, there’s one hydrogen atom per cubic meter. Continue reading
This is a simple, yet extremely effective model of human lungs. Students are able visualize how the lungs, thoracic cavity and diaphragm work together to facilitate inhalation and exhalation. Continue reading
This demo illustrates the presence of atmospheric air pressure and shows how the force that it exerts is greater than the force of gravity in some situations. Continue reading
On this episode of The Spangler Effect, fire, ice and a steel drum are all Steve needs for his final experiment. But don’t worry… you’ll learn how to perform the classic Can Crusher trick using an ordinary soda can and a little atmospheric pressure. Get a behind the scenes look at what happens as Steve and his team prepare for his next appearance on the Ellen DeGeneres Show.
The Spangler Effect
Air takes up space, has weight, and has pressure. These properties of air create forces that affect structures and can create natural phenomena that affect our way of life and have effects on our weather. The following experiment may give you some insight into the role air pressure plays on structures and the weather around us. Air pressure can be explained by Pascal’s law that says that the force of air acts the same in all directions. We don’t normally feel air pressure because the air pressure is evenly distributed all over and against our skin.
…connecting force, area, and pressure? That’s some feat!
Contributed by: Catherine Little
Grade 8: Structures and Mechanisms
- Systems are designed to accomplish tasks.
- All systems include an input and an output.