Hawking radiation was first discovered by English scientist Stephen Hawking in 1974. Prior to this discovery, our knowledge of black holes was very limited. It was believed that black holes were completely black and that they did not...

Quantum physics deals with the foundation of our world – the electrons in an atom, the protons inside the nucleus, the quarks that build those protons, and the photons that we perceive as light. These constitute everything that we are...

This video is a lecture on specific latent heat, which looks at the energy absorbed or emitted by a substance as it changes states (solid, liquid, or gas). The lecture discusses two equations that can be used to calculate the amount of...

This video provides an overview of the basic structure of an atom, including the components of its nucleus and the orbiting electrons. The video goes on to describe the mass, charge, and relative size of these components and how they...

We all know what it's like to feel hot or cold. But what is hot? What is cold? What does temperature really measure? Don't pretend like you haven't lost sleep over this. Well you don't have to fret any longer, Prof Dave will take you...

Dark matter has so far foiled most means of detection, but researchers are continuing to pursue its mysteries. They're using the most sensitive detector yet, called XENON100, to try to glimpse the particles. See how it works in this...

This video provides a basic understanding of electricity, explaining how it is generated and how it powers our everyday appliances and devices. Explore the fundamental particles that make up matter and how electrons flow to create...

This question has been bugging me for about 20 years. And, ultimately, it still bugs me...

Whenever you plug something into an electrical socket, don't you wonder what's going on? Well you should, as it's pretty neat. What is electricity made of? How did we figure out how to harness this power? Let's take a look!

This video explores the force of magnetism and how it affects our everyday lives. The atomic nature of magnetism is illustrated, and then applied in principle to common magnets. The video highlights how magnetic fields are created, and...

Upon viewing the The Changing Phases of Matter video series, students will be able to do the following: Explain that phases of matter, also called states of matter, are the physical forms matter can take. State the four phases of...

We all know that atoms exist. But we didn't always! A lot of people contributed in different ways to help develop our current understanding of atomic structure, starting all the way back in Ancient Greece. Grab some popcorn and let...

In Part 1, learn the basics about Collision Theory and Reactions. Different reactions can happen at different rates. What is a collision theory and how does it relate to reactions? Find out more in this video!

We know about kinetic energy and potential energy, which can interchange when an object moves through a gravitational field, so let's add to that list the internal energy of the object. This gives us a new and comprehensive way to...

In this online video lecture and tutorial on Cell Biology we will learn about various components of cell like nucleus,cell organelles, endoplasmic reticulum etc. In this session we will learn about: 1) Cell Organelles 2) Cellular...

A flash of lightning, and a rumble of thunder. But what exactly are these spectacular occurrences? In 1752, Benjamin Franklin discovered that lightning was caused by powerful electrical discharges in clouds. He wasn’t the first person to...