Macat
An Introduction to Kenneth Waltz’s Theory of International Politics
Kenneth Waltz's 1979 book An Introduction of International Politics used game theory and rational calculation to discuss international relations. Learn more about the ways states rely on trust to interact with each other,...
MinutePhysics
Why Is Relativity Hard? – Special Relativity Chapter 1
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...
Kurzgesagt – In a Nutshell
The Beginning of Everything—The Big Bang
How can something come from nothing? The Big Bang Theory has an answer to that question. An installment in the Kurzgesagt playlist outlines the theory of the origin of the universe. It includes an explanation of the evidence that...
Veritasium
The Best Test of General Relativity (by 2 Misplaced Satellites)
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...
TED-Ed
How Does Your Smartphone Know Your Location?
When your smartphone tells you the weather of your current location or gives you directions to the nearest gas station, there's more going on that you might realize. Follow along with this short video as it explains how...
MinutePhysics
Relativity of Simultaneity — Special Relativity Chapter 4
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...
PBS
Have Gravitational Waves Been Discovered?!?
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...
SciShow
The Sun's Center Is 39,000 Years Younger Than Its Surface
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...
MinutePhysics
Einstein's Proof of E=mc²
You see it everywhere — t-shirts, coffee mugs, posters ... but why was Einstein's most famous equation such a turning point in our understanding of the relationship between matter and energy? The short video demonstrates the math...
TED-Ed
Breaking the Illusion of Skin Color
"What Darwin could not appreciate...is that there is a fundamental relationship between the intensity of ultraviolet radiation and skin pigmentation, and that skin pigmentation itself was a product of evolution." Viewers are provided...
Domain of Science
The Map of Physics
Aristotle said, "The more you know, the more you know you don't know." Physics includes everything from the laws of motion to quantum gravity. An interesting video attempts to cover the main concepts of every branch of physics in only a...
Curated OER
Evolution Primer #1: Isn't Evolution Just a Theory?
What is a theory? Learners are primed for a lesson on theory, science, and the use of scientific evidence as it's used to prove evolution. This is a great video for elementary schoolers and can be used to introduce the concept of...
Veritasium
How Special Relativity Makes Magnets Work
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...
MinutePhysics
Relativistic Addition of Velocity — Special Relativity Chapter 6
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...
PBS
What Happens at the Edge of the Universe?
The cosmic even horizon of the universe is closer to us than the particle horizon. Space Time's Cosmology playlist tackles this and other complex concepts about the universe. The video discusses how the scientists define the edge of the...
MinutePhysics
Spacetime Diagrams — Special Relativity Chapter 2
The second video in the series on Special Relativity introduces the concept of perspective, relative distance, and graphing spacetime. Simple illustrations create clarity while describing each concept in depth.
PBS
The True Nature of Matter and Mass
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...
MinutePhysics
Length Contraction and Time Dilation — Special Relativity Chapter 5
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...
MinutePhysics
Spacetime Intervals: Not EVERYTHING Is Relative — Special Relativity Chapter 7
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...
Be Smart
The 12 Days of Evolution - Complete Series!
Scientists believe red hair and pale skin evolved in northern Europe because it helped humans synthesize vitamin D easier than those with more melanin in their skin. Viewers explore many interesting facets of evolution in a...
Crash Course
Gamma-Ray Bursts
What do you get when you combine the Cold War with black holes? You get one of the greatest scientific mysteries in the history of astronomy! Pupils discover how our quest to keep the Soviet Union from launching nuclear weapons helped to...
Crash Course
Kinetic Theory and Phase Changes: Crash Course Physics #21
Things get heated in a physics video on Kinetic Theory! The 21st lesson in a Crash Course playlist explains Kinetic Theory in relation to phase change. As the heat in a system changes, the motion of the particles also changes. The...
Crash Course
Evolution: It's a Thing
Evolution is a theory but thank goodness gravity is a law. What is the theory of evolution and what are the facts supporting this theory? Here's a short video that explains how fossils, homologous structures, biogeography, and direct...
Domain of Science
The Chain of Life
The narrator of a short animated video asks viewers to consider how they are just one link in a great chain of life that extends all the way back through time to the first single-cell organisms.