Devices that collect data about our bodies need power, but they also might need to be very small or even ingestible. To avoid including batteries in these cases, researchers are looking for ways to harvest energy from the body itself.

This week we are exploring alternative energy sources. We'll look at how biomass can be burned as a fuel source, how hydrogen can be used in a fuel cell to generate electrical power, and how nuclear fission provides power to the grid....

Today, we'll explore the materials electrical engineers work with. We'll look at high-conductors, insulators, and how low-conductivity conductors can be used to generate light and heat.

This week we are looking at renewable energy sources and why we need them. We’ll explore hydropower, wind, geothermal, and solar power, as well as some of the challenges, and how engineers are working to make their use more widespread.

Pupil outcome: I can compare the power of different appliances and work out how much they cost to use. Key learning points: - Electrical appliances and devices use different amounts of energy each second, as indicated by their power...

How to test a car battery. Learn how to test a car battery. How to use a multimeter to test a car battery 12V. Starter motor and alternator. What happens to the battery voltage during car starting, running and charging. How to tell if...

Often students struggle between whether to major in mechanical engineering or electrical engineering. These are two of the most common engineering disciplines so I wanted to address this question for those who are...

This video explains the concept of electrical power and presents three equations that can be used to calculate the power of an electrical component. The equations involve variables such as potential difference, current, and resistance,...

In this episode streamed on Sept. 27, 2018, we talk about space video games, exploring deep space and more.

Gary Cox describes the imaging systems on board the Orion spacecraft that will enable the earthbound to see the Earth and Moon from deep space during Artemis missions. HWHAP Episode 226.

NASA's Marc Rayman discusses the legacy of the Dawn mission to the two most massive bodies in the main asteroid belt.

In this video, we'll answer the question: why do cars need a battery? We'll explain the basics of car batteries, and talk about the importance of having a battery in a car.

This video is a lecture on electrical power. The concept of power in electrical appliances is discussed, along with how to calculate the power of an electrical appliance. The video demonstrates using the equation to calculate the power...