This video explains the two main ways electrons can flow through a wire: direct current (DC) and alternating current (AC). This video is part of the 14-part series, Current Electricity.

You’re on holiday and have been on the beach all day, sharing photos to social media to make your friends jealous. Your phone battery is running low. Then back in the hotel - disaster strikes. In this video we’re going to look at how...

Solar cogeneration combines a photovoltaic and thermal module to provide electricity and hot water. Traditional PV systems convert about 15 percent of solar energy into electricity, with the remaining energy wasted. Solar cogeneration...

This video provides a brief and concise explanation of nuclear energy. It highlights the two main processes involved in nuclear energy production: fusion, which occurs in the sun and involves the joining of hydrogen nuclei, and fission,...

This video explores five fun facts about the Circulatory System.

In this video, we explore the fascinating relationship between electricity and magnetism. We discover that a simple electric wire can exhibit a magnetic force, as demonstrated by the movement of a compass needle when brought close to it....

Electricity makes our lives easier every day. We use electricity in our work and play. Because electricity is virtually unseen, it is often difficult to understand just where it comes from and how it works. By watching the video and...

About half the world has internet access. That's 3.6 billion people surfing the web. How much energy is that using? And what is our online world doing to our planet's climate?

The flick of a switch, that’s how easy it is to get electricity, right? If you’re one of the lucky ones, then yes. But in 2017 there are still over 1 billion people who do not have access to electricity. In this video we will discuss how...

The video is a lecture presentation demonstrating how to investigate the changes in resistance when resistors are added to a circuit in series and parallel. The presenter uses a circuit with a fixed resistor and measures the resistance...

The video explains the process of electrolysis of molten iron compounds. It discusses what electrolysis is and how it works, with a focus on the movement and reaction of ions at each electrode. The video also explains the concept of an...

Here we explore interesting facts about Electric Rays, cartilaginous ray-fish that can generate up to 200 V of electricity to attack their prey or defend against predators.

Lightning is spectacular, from a distance. It's nature's way of transferring electricity within the sky, or between the sky and the ground. When lightning is nearby, it is a threat to safety. People are struck by lightning, in many cases...

Do you like arts and crafts? How about making sculptures with Play Doh® or modeling clay? Imagine how cool it would be if you could add lights to your creations? That is exactly what you will get to do in this activity! Keep reading to...

In this video, we delve into the fascinating world of solar energy and its potential as a future source of power generation. Join us as we uncover the various methods of harnessing the sun's energy and discuss the benefits and challenges...

The video explains how objects can become charged by the transfer of electrons, resulting in static electricity. It also discusses how charged objects exert non-contact forces on each other, with like charges repelling and opposite...

Making Petrified Lightning ...with electricity??

Case studies of companies saving money through reducing energy usage and purchasing renewable energy.

The working of an electric iron is very simple – it draws electricity from the mains and heats a coil inside. This heat is then transferred to the bottom plate, which is pressed against the clothing to remove wrinkles. It is the...

From the section: Power Supplies. Here, we check our power supply, mount the power supply and learn how to cool our PC. A PC power supply takes AC power from the grid and transforms it into DC voltage the system needs to run.

Power is a measure of how quickly energy is transferred and it's measured in Watts. The more energy that is transferred in a certain time, the greater the power. A 100 W light bulb transfers more electrical energy each second than a 60 W...

Europe experienced one of the most remarkable periods in history roughly between 1550 and 1700, when three of history's most important events were occurring simultaneously: the Renaissance, the Reformation, and the Scientific Revolution....

Do engineers have the power to change lives and make a positive difference in the world? This inspiring, award-winning documentary clearly shows the answer is a resounding “Yes!” "Engineering a Difference" follows three teams of...

Construction has begun on a solar plant in North Texas that will become the largest facility of its kind in the U.S.