Understanding Electricity Supply and Demand
Backgrounders
Electricity demand changes constantly. Suppliers need to generate more electrical energy when demand is high, and less when demand is low.
Telegraph Key
Interactives
The telegraph works by transmitting signals through an electrical circuit. Learn more and print your own telegraph key using this 3d model of a real artefact.
Microbial Fuel Cells
STEM Explained
In a few decades, some of the electricity you use might be generated by bacteria.
Generating Electricity: Hydroelectric Power
STEM Explained
Learn how moving water can be used to generate electricity. This is called hydroelectric power generation.
How much power is generated when climbing a set of stairs?
Hands-on Activities
Put on your running shoes and sharpen your pencil! Investigate the mathematical connection between work and power in this hands-on activity.
Hydraulics 101
STEM Explained
Hydraulics power many of the large machines you see around you.
The History and Uses of Hydrogen
STEM Explained
Hydrogen’s tendency towards combustion is what makes it both a dangerous chemical element and a useful energy source.
How is Lenz's Law Used in Drop Tower Rides?
STEM Explained
How do magnetic fields help you get down safely from the top of a drop tower ride? Learn how electromagnetic induction works at the amusement park.
How do I construct a terrarium?
Hands-on Activities
You can make your own terrarium for growing plants!
Green Walls
STEM Explained
Green walls use plant processes to improve air quality in buildings.
How can I build a rollercoaster?
Hands-on Activities
Try your hand at building a “super coaster” using materials around your home.
Energy Efficiency at Home
STEM Explained
If you understand heat transfer, you can make lots of little changes at home to help the environment and your household’s bank account!
Can You Store Electricity for Later?
STEM Explained
Sometimes, power plants make too much electricity. Energy storage technologies can help! They store the extra electricity and release it when demand goes up.
Are wind farms a threat to wildlife?
STEM Explained
Wind power is a growing source of electricity generation. But wind projects often affect local wildlife populations, and researchers are using environmental monitoring techniques to alleviate some of these impacts.
Schuyler Kahgee (Video)
Career Profiles
Industrial Millwright