Pbs Learning Media: Crash Course Physics: Uniform Circular Motion

Today on Crash Course Astronomy, Phil dives into some very dark matters. The stuff we can actually observe in the universe isn't all there is. Galaxies and other large structures in the universe are created and shifted by a force we...

As we approach the end of Crash Course Astronomy, it's time now to acknowledge that our Universe's days are numbered. [15:00]

Population ecology is the study of groups within a species that interact mostly with each other. It examines how these animals live together in one geographic area to understand why these populations are different in one time and place...

This is a collection of 46 video lessons which together provide an abbreviated Chemistry course.

The fourth planet from the sun and the outermost of the terrestrial planets, Mars has long been a popular spot for missions and imagination. Learn about the planet's topography, core, and features. We'll take a look back to Mars's past...

Venus is a gorgeous naked-eye planet, hanging like a diamond in the twilight, but its beauty is best looked at from afar. Even though Mercury is closer to the sun, Venus is the hottest planet in the solar system due to a runaway...

Continuing in our journey of understanding motion, direction, and velocity. Today, Shini introduces the ideas of Vectors and Scalars so we can better understand how to figure out motion in 2 Dimensions. But what does that have to do with...

When you hear the word, "Work," what is the first thing you think of? Maybe sitting at a desk? Maybe plowing a field? Maybe working out? Work is a word that has a little bit of a different meaning in Physics and today, Shini is going to...

In order to understand how we study the universe, we need to talk a little bit about light. Light is a form of energy. Its wavelength tells us its energy and color. Spectroscopy allows us to analyze those colors and determine an object's...

Take a look at the cyclical phenomena at work in the universe. Learn about the subtle changes in the sky that take place over time as the Earth circles the sun, following along the ecliptic. Learn how the tilt of the Earth's axis has a...