Instructional Video11:29
Be Smart

The Sun is Not the Center of the Solar System

12th - Higher Ed
Despite what you may have heard or learned in school, the sun is NOT in fact the center of the solar system. And it won’t be until 2027… But this being a science channel, you might be thinking “What the heck is this guy talking about? Of...
Instructional Video11:59
Crash Course

The Scientific Revolution: Crash Course History of Science

12th - Higher Ed
So, what exactly is a scientific revolution? And are they more than just moments in time Historians use to mark the beginning and ending of things through time? In this episode we'll look into some ideas and people named Nick and how...
Instructional Video1:56
Curated Video

Why Does The Earth Revolve Around The Sun?

Pre-K - 5th
Let's learn all about Heliocentrism!
Instructional Video3:53
Curated Video

The Renaissance (An Introduction)

K - 8th
The period of history between the 14th and 17th century became known as the Renaissance—a word that means revival or rebirth. Itt is considered one of most important events in European history and it has had a lasting influence on...
Instructional Video4:53
Professor Dave Explains

History of Astronomy Part 2: Early Measurements of the Earth

9th - Higher Ed
After many centuries of pure observation, it finally became time for mankind to start doing some science to figure out the dimensions of the Earth and other nearby objects. What were these early experiments? What did they tell us? Let's...
Instructional Video6:30
Professor Dave Explains

History of Astronomy Part 3: Copernicus and Heliocentrism

12th - Higher Ed
Once it was determined that the Earth is round, the next step was to decipher the geometry of the solar system. Does everything rotate around the Earth, like in the geocentric model of Ptolemy? We thought so for thousands of years, but...
Instructional Video
Crash Course

Crash Course History of Science #14: The Scientific Methods

9th - 10th
Historically speaking, there is no one scientific method. There's more than one way to make knowledge. In this episode, learn about three scientists and the methods they pioneered. Galileo's focus on rational comparison of theories about...
Instructional Video
Crash Course

Crash Course History of Science #13: The New Astronomy

9th - 10th
This is the story of Tycho Brahe and Johannes Kepler and the contributions they made to the field of Astronomy. They synthesized a lot of new, old, and bold astronomical ideas into a single sun-centered, eccentricity-positive system....