New ReviewHave scholars ever wondered what a black hole looks like? See the first image of a massive black hole and learn about what a black hole is, how it forms, and how telescopes took images from around the world. The video then relates the...

New ReviewWhat is a black hole? Individuals hear a detailed explanation about what a black hole is, how it forms, and how it effects light and matter. The characteristics of a black hole determine the image it produces in telescopes, and...

An analysis of launched objects helps scholars understand general relativity in greater detail. These aren't just any launched objects, though! A video presentation describes the gravitation potential energy of satellites in orbit and...

The simple question What time is it? may not be so simple after all. Learn about the history of measuring time and the debate on if time even exists with a short video that considers both classical physics and quantum physics when...

Special relativity relates how things appear when the observer moves. The fourth video in the series on Special Relativity uses multiple examples to demonstrate the principle. It describes the differences when the reference frames move...

The final video in a series on Special Relativity offers a new hands-on approach to solving the twins paradox developed by Paul Langevin over 100 years ago.

Special relativity proves that both length and time are relative—but, that's not the complete story. Scholars learn how both length and time have absolute values that don't vary with perspective. The seventh lesson in the eight-part...

Scientists know things can't travel faster than light speed, so how do scholars add together numbers close to light speed? The sixth video in the eight-part series on Special Relativity answers these questions and more. the narrator not...

Special relativity provides rules for making time both shorter and longer simultaneously—and does the same for distances. This concept seems confusing, but with help from a spacetime globe and mathematical explanation, the concepts...

Generally, Lorentz transformations require high level math skills, but conceptual understanding can slip just beyond the grasp of many. Using a story and graph about the time and motion of people and cats, viewers of a short video can...

One of the most famous ideas in physics, special relativity, explains the speed of light, the space time continuum, and E=mc^2. Many scholars struggle with the hows and whys of this confusing concept. The first video in a series on...

The prediction of gravitational waves rocked the scientific world, but it was many years before researchers tested the theory. See how Rainer Weiss applied his knowledge of sound waves to solve this impressive physics problem in an...

Astronauts on the ISS continuously fall in a curve thanks to gravity. A video describes the idea of falling along a curved path. Using computer animations, an apple demonstrates the warping of spacetime while the narrator explains the...

Explore the theory of relativity in relation to spacetime! An intriguing lesson explains the concept of spacetime and how time does not change at the same rate for everyone. As a lesson in a larger solar system playlist, the video...

Ever wonder what it's like to feel weightless? Hop aboard the Vomit Comet and find out! A video from a large physics playlist features the parabolic airplane flight used to simulate weightlessness. Young physicists discover how the...

How can something as vast as the universe also be flat? Go beyond the Big Bang Theory using a video from an expansive physics playlist. Topics include the expansion and inflation of the universe, why opposite sides of the universe are...

Everyone knows that one twin is always older in a pair. But, could a twin be years older? A video from an extensive physics playlist explains Einstein's theory of special relativity. Topics include the speed of light, special versus...

Advances in technology lead to advances in science. As part of a larger playlist on physics, the video presenter explains the history of the discovery of gravitational waves. Using these waves provides insight into many different...

Galileo established relativity, and Einstein developed the laws of special relativity to more fully explain physics. A brief video explains how special relativity relates to electromagnetism. Through simple illustrations, complex...

Einstein was right ... again? Introduce young physicists to the final piece in Albert Einstein's Theory of Relativity through a video from PBS covering space time and measurement. Discover where gravitational waves come from, the...

Just when you thought you had this figured out! Engage young physicists in an interesting look at the nature of a universal constant with a video, part of a PBS playlist on space time and measurement. Viewers examine the history of...

Black holes are not just events in sci-fi movies—they're part of real life! Learners experience the creation of a black hole as they watch an episode of the Socratica playlist. The presenter explains the creation and composition of these...

Scientists know mass is energy, but what is energy? An engaging Space Time video delves into the topic as part of its The Origin of Matter and Time playlist. From quarks and gluons with no mass to the gravitational effect, the true...

Some define time by motion, but how exactly does this work? Space Time added a video as part of its The Origin of Matter and Time playlist to explore just this question. It breaks down the relationships between matter, motion, and time....