MinutePhysics
What if the Earth Were Hollow
What if there were a tunnel through the middle of the earth and you jumped in?
SciShow
The Quest for Glueballs
The quantum world is weird. Today we're looking at a strange particle called a glueball that contains no matter...they're made of pure force!
SciShow
5 Times Evolution Should Have Planned Ahead
Natural selection can lead to some pretty amazing adaptations, but sometimes the resulting traits aren’t the most efficient solutions to the problems at hand. With the bar set to “good enough,” here are some features that arose from...
SciShow
4 of Physics’ (Other) Greatest Mysteries
Physicists are interested in the big questions like "Where did we come from?" and "What is all this stuff?". But the answers to some of these questions, just lead to more questions.
Be Smart
Theory vs Hypothesis vs Law
Some people try to attack things like evolution by natural selection and man-made climate change by saying "Oh, that's just a THEORY!" Yes, they are both theories. Stop saying it like it's a bad thing! It's time we learn the difference...
SciShow
How Stars Freeze
When you think of a frozen object in space, you might think of Pluto, but stars themselves actually freeze.
SciShow
5 Things You Were Taught Wrong in Elementary School | Compilation
When you’re learning about science for the first time, it can be easier to break things down into a simpler form, and you can end up with a few misconceptions about the world. But sometimes this is the first step to understanding that...
TED-Ed
TED-Ed: Three ways the universe could end - Venus Keus
Our universe started with the Big Bang, but how will it end? Explore cosmologists’ three possible scenarios: the Big Crunch, the Big Freeze and the Big Rip. -- We know about our universe’s past: the Big Bang theory predicts that all...
SciShow
5 Baffling Mysteries About the Universe
At the beginning of the 20th century, many scientists thought that we had learned all there was to know about physics. The problem is, the better we get at measuring things and building models of our universe, the more we discover that...
MinutePhysics
Do Photons Cast Shadows?
This video is about two-photon (gamma-gamma) physics, and how photons can interact with each other - either mediated by a passing lepton, or gravitationally via lensing, or via vacuum fluctuation pair production of vertical particles...
SciShow
The Surprisingly Retro Future of Batteries
Renewable energy may be the way of the future, but in order to store that energy to make our grids more sustainable, we might need to take a look back at some battery technologies of the past.
SciShow
What If the Universe Isn't Uniform?
According to the cosmological principle, the universe is more or less the same in all directions. But what happens when we put this to the test?
TED-Ed
TED-Ed: What is the universe expanding into? - Sajan Saini
The universe began in a Big Bang nearly fourteen billion years ago, and has been expanding ever since. But how does the universe expand and what is it expanding into? Sajan Saini explains the existing theories around the Big Bang and...
Bozeman Science
Calculating the Gravitational Force
In this video Paul Andersen explains why astronauts are weightless. He also explains how Newton's Universal Law of Gravitation can be used to calculate the gravitational force between objects.
SciShow
What If Dark Energy Doesn’t Exist?
Dark Energy is what we call the mysterious force that seems to be pushing the universe apart. By some calculations, it makes up 70% of everything in nature. Or...maybe it doesn’t exist at all! Plus, Juno’s observations give us new...
SciShow
3 Ways to Slingshot a Star
The star-mapping satellite Gaia has found more than 20 stars speeding across the Milky Way toward intergalactic space. There are just a few things that can slingshot a star out of a galaxy and all of them take some extreme gravitational...
Be Smart
What Do Raindrops Really Look Like?
What do raindrops look like? Exactly how we drew them as kids, right? Wrong! Teardrop-shaped rain is physically impossible. This week I went inside a vertical wind tunnel to bring you the true shape of rain.
Crash Course
Why Cosmic Evolution Matters: Crash Course Big History
Crash Course Big History is back! It turns out, we couldn't tell all of the 13.8 billion years of the history of the universe in 10 Crash Course Episodes. So, Big History host Emily Graslie has returned to add 6 more episodes that look...
SciShow
So what IS the Higgs boson?
Hank responds to viewer questions, and explains what the Higgs boson particle actually IS.
TED-Ed
TED-Ed: Yes, scientists are actually building an elevator to space | Fabio Pacucci
Sending rockets into space requires sacrificing expensive equipment, burning massive amounts of fuel, and risking potential catastrophe. So in the space race of the 21st century, some engineers are abandoning rockets for something more...
SciShow
How Space Tech Is Changing Life on Earth: 2020 Edition
We’ve developed thousands of technologies for space exploration, but luckily for us, sometimes those solutions apply to problems here on the ground, too.
SciShow
Solving Mysteries with the Ancient Galaxies Next Door - SciShow News
Some of the oldest galaxies we’ve ever seen are small, faint satellite galaxies orbiting the Milky Way, and they're providing us with a glimpse of how the universe evolved.
SciShow
The Oldest Fossils Ever Found!
Scientists have found fossils that show life appearing on Earth much earlier than we thought. Meanwhile, could there be a new fundamental force?