Be Smart
Einstein Was Right: Gravitational Waves Edition
A theory of physics 100 years in the making.
Bozeman Science
Equivalence Principle
In this video Paul Andersen explains how inertial mass and gravitational mass are equivalent. He shows you too simple methods for calculated individual inertial mass and gravitational mass. Albert Einstein used this principle to build...
SciShow
What If the Large Hadron Collider Made a Black Hole?
Making a black hole in a particle accelerator sounds… a bit dangerous, to say the least, but scientists think that it could be possible! Here's why it probably wouldn't be dangerous -- and might even teach us something.
MinutePhysics
Why is Relativity Hard? | Special Relativity Chapter 1
Thanks to my friend Mark Rober for making the spacetime globe, and to Grant Sanderson (3blue1brown) for inspiration. This is the first in a series of videos about special relativity. This is definitely not an academic course, but it's...
MinutePhysics
Lorentz Transformations | Special Relativity Ch. 3
The previous videos in this series: Chapter 1: Why Relativity is Hard Chapter 2: Spacetime Diagrams This video is chapter 3 in my series on special relativity, and it covers boosts, galilean transformations, newtonian relativity, and of...
Bozeman Science
Spacetime
In this video Paul Andersen explains how the dimensions of space and time are combined in relativistic mechanics. Gravity and velocity can affect both space and time according to Albert Einstein's Special Law of Relativity.
MinutePhysics
Einstein and The Special Theory of Relativity
How Einstein (& others) discovered Special Relativity. Pi day (3.14) is Albert Einstein's Birthday! To celebrate, we'll explain 4 of his most groundbreaking papers from 1905, when he was just 26 years old.
Crash Course
Special Relativity: Crash Course Physics
So we've all heard of relativity, right? But... what is relativity? And how does it relate to light? And motion? In this episode of Crash Course Physics, Shini talks to us about perspective, observation, and how relativity is REALLY weird!
SciShow
The Experiment That May Have Broken Physics | SciShow News
Researchers have made some unexpected readings of mysterious particles called muons, which may make us reexamine the Standard Model in physics.
Crash Course
Einstein's Revolution: Crash Course History of Science
There was physics before Einstein in the same way that there was biology before Darwin. Einstein didn’t just add some new ideas to physics. And he didn’t just add a unifying framework for doing physics, like Newton. Einstein took what...
Bozeman Science
PS2A - Forces and Motion
Paul Andersen introduces forces, motion, and Newton's three laws in this video. He begins by describing forces as pushes or pulls on objects that produce motion. A lack of motion results from a balanced set of forces. A teaching...
Bozeman Science
Momentum
Mr. Andersen explains the concept of momentum. He also shows you how to solve simple momentum problems. He finally shows you how momentum is both conserved and relative.
Curated Video
Why Is the Speed of Light Limited—and What If It Weren’t?
New ReviewWhy does the universe have an upper speed limit on the speed of light? Why isn’t the top limit infinite? Or what if the speed of light was not constant but changed in different reference frames? The speed of light is dependent on two...
Curated Video
What if Time Stopped for Everyone, Except You?
New ReviewWhat if time stopped? What would happen? What if we could stop time? Would it be like the movies? You might be shocked to learn the reality of what would happen if time stopped. The speed of the ticks on a clock has nothing to do with...
Curated Video
String Theory Simplified: Could It Explain Our Existence?
What is string theory? When string theory is simplified - it can answer the question "Why do we exist?" First you must accept that there are two worlds we live in - the world of the large, the world we can see, which is familiar, calm,...
Curated Video
Special Relativity Explained Through Einstein’s Thought Experiments
Einstein's Special Relativity Explained Simply - no math This entire revolution in physics started with a simple thought experiments, in the prolific imagination before Einstein even graduated from high school. Einstein’s theory of...
Curated Video
General Relativity Explained with Simple Visuals
SUMMARY Albert Einstein was ridiculed when he first published his theory. People thought it was too weird and radical to be real. Einstein wasn’t satisfied with his theory either, because the theory did not apply if Gravity was present...
Curated Video
Is Time Travel Possible? Three Theories Backed by Science
Is time travel possible? Of course it is…into the future. You and I are travelling in time right now. And travelling into the far future also is also a reality using Einstein’s principle of time dilation when you travel at high speeds or...
Curated Video
A Conceptual Overview of Physics: Essential Principles to Remember
Five areas of physics worth remembering: Classical mechanics, energy and thermodynamics, electromagnetism, Relativity, and Quantum Mechanics. Classical mechanics - two main concepts worth knowing. The first is Newton’s second law: F= ma:...
Curated Video
OTD In Space - May 29: Einstein's Theory Of Relativity Tested With Total Solar Eclipse
On May 29, 1919, a total solar eclipse helped to prove Albert Einstein's theory of general relativity. Einstein's theory suggested that gravity could bend light by curving the fabric of spacetime. To prove it, he thought it would be a...
Curated Video
Searching for Gravity Waves: The Biggest Physics Experiment Ever
In this video, scientists from Germany's Max Planck Institute are working on the biggest physics experiment ever to detect faint gravitational waves predicted by Einstein's general theory of relativity. Three gold cubes will float freely...
Astrum
How the Speed of Light Reveals the Strangeness of Our Universe
Why doesn't anything go faster than the speed of light? Want to see the world through the eyes of a scientist?
Astrum
What Black Holes Imply About Our Reality
How spacetime curvature may shape us as much as we shape it...