This video explains the difference between meteoroids, meteors, and meteorites. They discuss the history of meteors and how they were once believed to be fireballs or signs of impending doom. The video also covers the origin and...

Modern though it may seem, well-being or wellness has historical roots. While popular scientific research on the subject dates back to the 1970s, 60s and 50s America and Europe, the origins of well-being date back much farther, and are...

Thank you to Arbor Scientific for letting me borrow their Rotational Inertia Demonstrator to … uh … demonstrate rotational inertia.

We've learned about the stellar life cycle, so we know what happens to smaller stars like ours, and we know what happens to larger stars that become neutron stars and black holes. But what are the limits on either side? How small can a...

What are Isotopes? Find out in this video from the Properties of Matter chapter.

One of the best things about Newton was the way that he showed how natural phenomena abide by rigid mathematical principles. So much so that we can use mathematical equations to calculate how objects will actually behave. This equation,...