This video is a lecture about waves, specifically transverse and longitudinal waves. The speaker defines what a wave is and explains how it transfers energy without any matter being transferred. The video then delves into the differences...

The video explains the basics of electromagnetic waves, including their definition as transverse waves that transfer energy from a source to an absorber. It discusses the seven general sections of the electromagnetic spectrum, going from...

China says it has built an artificial moon that can make frogs and pretty much anything else float in the air.

Inductors Explained, in this tutorial we look at how inductors work, where inductors are used, why inductors are used, the different types. We take an in depth look at how the circuits perform with a parallel resistive and inductive load...

In this video students will come to understand how matter and energy can interact through the four fundamental forces: gravity, electromagnetic, strong nuclear, and weak nuclear. Viewers will learn how the four fundamental forces were...

When Earth’s spinning outer core cools and becomes solid, Earth will die like Mars died.

If any of these energy bombs hit Earth, humanity’s satellites, internet and electrical systems will fry and burn out.

This is a lecture on electromagnetic devices, exploring the real-world applications of electromagnets. The video describes how an electromagnet works, with a solenoid and iron core generating a magnetic field when a current is flowing...

X-Rays are part of the electromagnetic spectrum and have a wavelength of about the diameter of an atom. Because of this small wavelength they are able to penetrate healthy tissue but are absorbed by denser material like bone and metal....

In this lecture video, the different types of electromagnetic waves are examined, and their uses and applications are explored. The video begins with an overview of the electromagnetic spectrum, starting with gamma rays and ending with...

Using real world demonstrations and colorful graphics, Real World Science: Light teaches students the different properties of light, pertinent definitions and how light travels. Students will learn how different mediums can affect light,...

Magnets can be found in many objects that we use everyday. Not only are they located in man-made objects, but magnetic materials can be found in nature as well. In fact, the mineral, magnetite, was found to have magnetic properties long...

When a current flows through a wire it causes a magnetic field to be produced around the wire. For a single piece of wire, the magnetic field is made up of concentric circles around the centre. If you coil the wire up however, the...

If we want to learn about the universe, we have to start at the very beginning. How and when did the universe begin? Is it even possible to know about such things? Yes, it is! That's what cosmology is all about, the origin and...