Professor Dave Explains
Special Relativity Part 3: Length Contraction
Time dilation was pretty weird, huh? Well we aren't done yet! Time is relative, and so is space! Different observers measure different lengths for objects and journeys. Weird stuff!
Curated Video
What Would Happen If You Traveled At The Speed of Light?
If you travel at the speed of light, your mass will increase exponentially. The speed of light is 300,000 kilometers per second (186,000 miles per second). When you move at this speed, your mass will become infinite. Therefore, infinite...
Professor Dave Explains
Special Relativity Part 4: Mass-Energy Equivalence or E = mc^2
Everyone and their mom knows about E = mc^2, it's the most famous equation in science, and there are plenty of posters you can buy for your dorm room with Einstein's face and this equation floating mysteriously around his head. But what...
Science360
Why is the expansion of the universe speeding up?
Why is the expansion of the universe speeding up? Dr. Saul Perlmutter answers your question in this special “Mysteries of the Cosmos” edition of Ask a Scientist.
A Capella Science
Bohemian Gravity (Queen Parody)
String theory explained with a theoretical physics rendition of Queen's timeless classic, "Bohemian Rhapsody"
ACDC Leadership
Why Socialism Analyzing Einstein's Essay
Here is Einstein's article in the Monthly review magazine. Why Socialism? by Albert Einstein This article was originally published in the first issue of Monthly Review (May 1949). It was subsequently published in May 1998 to commemorate...
Dom Burgess
Is Time Travel Possible? Tipler Cylinder - Every Think Part 1 of 3
Tipler Cylinders? Wormholes? Ring Lasers? Is it possible to travel BACK in time? In this action packed episode, Dom is hunted down by a government agent who wants to know how he made a time machine. Part 1 Dom is chased down and...
Next Animation Studio
Einstein’s theory of relativity passes major test
Einstein’s theory of relativity has passed a huge test involving pulsar stars — extremely dense neutron stars that emit beams of radiation and particles from their magnetic poles.
NASA
Hubble Confirms Largest Comet Nucleus Ever Seen
NASA’s Hubble Space Telescope has determined the size of the largest icy comet nucleus ever found. And, it’s big! With a diameter of approximately 80 miles across, it’s about 50 times larger than typical comets. Its 500-trillion-ton mass...
Catalyst University
Development of Quantum Mechanics: Photoelectric Effect Example 1
Development of Quantum Mechanics: Photoelectric Effect Example 1
Professor Dave Explains
Quantization of Energy Part 2: Photons, Electrons, and Wave-Particle Duality
So Max Planck kicked things off, but how does the story of modern physics continue? With none other than your favorite scientist and mine, Albert Einstein! He did more than just stick his tongue out and have crazy hair. He elucidated the...
Amor Sciendi
Les Demoiselles d'Avignon; Relativity and the Unconscious
Picasso's Les Demoiselles d'Avignon explains the feeling of being alive in 1907.
Mazz Media
Reviewing Fundamental Forces
In this video students will come to understand how matter and energy can interact through the four fundamental forces: gravity, electromagnetic, strong nuclear, and weak nuclear. Viewers will learn how the four fundamental forces were...
Professor Dave Explains
Nuclear Reactions, Radioactivity, Fission and Fusion
Radioactivity. We've seen it in movies, it's responsible for the Ninja Turtles. It's responsible for Godzilla. But what is it? It's time to learn exactly what nuclear reactions are, and what it is that makes atomic bombs so destructive,...
The Kiboomers
Old MacDonald Had A Farm | Nursery Rhymes | Kids Songs | The Kiboomers
Old MacDonald Had a Farm! Nursery songs for children. Come visit the animals and learn the sounds they make! Toddler songs! 'Old MacDonald had a farm, E I E I O,' And on his farm he had some chicks, E I E I O. With a chick chick here and...
Neuro Transmissions
What Are Astrocytes?
You know about neurons. Theyêre the superstars. But have you heard about its crew? In this episode of Neuro Transmissions, weêre embarking on a mini series about the brainês entourage - glia! This episode highlights Alieês favorite cell...
Professor Dave Explains
Introduction to Classical Physics
Physics is the grandaddy of the sciences! When those ancient dudes in togas were philosophizing about the way the universe works, they were setting the stage for what we now know of as physics, even though it didn't really get going...
Physics Girl
Special Relativity and the Twin Paradox
How can just two rules of Einstein's 1905 theory of special relativity lead to seemingly paradoxical changes in the perception of time? Want exclusive updates whenever a new video is posted? Special relativity was one of the first...
Professor Dave Explains
Special Relativity Part 1: From Galileo to Einstein
We talked a little bit about relative motion in the classical physics course, with Galileo dropping stuff in boats. But once Einstein got his hands on relativity, he went a little nutty with it! The inertial reference frames are back but...
Professor Dave Explains
Wave-Particle Duality and the Photoelectric Effect
Look, up in the sky, it's a particle! It's a wave! Actually it's both. It's light! How do we know about this stuff? Well, because of Einstein for one. He did more than E = mc^2, you know. But don't stare at the sun to see for yourself,...
Catalyst University
Quantum Mechanics | The Photoelectric Effect
This is an introductory video to Albert Einstein's photoelectric effect, the discipline that made him a Nobel laureate. -For Physical chemistry & Quantum level studies
FuseSchool
PHYSICS - Forces - Inertia
Inertia is the resistance to a change in motion. So an object at rest remains at rest and an object in motion remains in motion with the same velocity unless acted upon by an unbalanced force.
Professor Dave Explains
Mercury: The Innermost Planet
It's time to take a tour of the solar system, one object at a time! First up is Mercury, the planet that orbits closest to the Sun. So closely in fact that there is no atmosphere, and things get very toasty during the daytime. What else...
Professor Dave Explains
Evidence for Big Bang Cosmology
At the beginning of this series, we talked about the Big Bang, which was the beginning of our universe, and what happened in the early epochs thereafter. But what we didn't talk about was how we know all that stuff! What is the evidence...