PBS
What If Gravity is Not A Fundamental Force?
New ReviewThere are four fundamental forces - the strong and weak nuclear forces, electromagnetism, and gravity. Except maybe gravity is no more fundamental than the force of a stretched elastic band. Maybe gravity is just an entropic byproduct—an...
PBS
Can We Test Quantum Gravity?
New ReviewIf we discover how to connect quantum mechanics with general relativity we’ll pretty much win physics. There are multiple theories that claim to do this, but it’s notoriously difficult to test them. They seem to require absurd...
PBS
Is Gravity Random Not Quantum?
New ReviewThe holy grail of theoretical physics is to find the long-sought theory of quantum gravity. But what if this theory is as mythical as the grail of legend? What if gravity isn’t weirdly quantum at all, but rather … just a bit messy? Or...
SciShow
How To Make Buildings Into Batteries
New ReviewIt's no secret that we need green energy solutions. But one often-overlooked part of that future is the need to store our green energy longer-term, so finding novel ways to store that energy is key. Enter: gravity batteries. Hosted by:...
MinutePhysics
Why the Solar System Can Exist
If gravity is so attractive, why doesn't the earth just crash into the sun? Or the moon into the earth? The answer: Stable Orbits
MinutePhysics
Where Do Galaxies Come From?
Thanks to the Space Telescope Science Institute (STScI) and NASA's James Webb Space Telescope for supporting this video! In particular, thanks to Dan Coe of STScI for taking the time to chat with me about what we do and don't know about...
MinutePhysics
What is Sea Level
An oblate spheroid is a special case of an ellipsoid where two of the semi-principal axes are the same size.
MinutePhysics
What if the Earth Were Hollow
What if there were a tunnel through the middle of the earth and you jumped in?
MinutePhysics
Hitting the Sun is HARD
This video is about the orbital mechanics of why it's so hard to crash into the sun - the energy it takes to get there is astoundingly high, compared with leaving the solar system.
MinutePhysics
Gravitational Waves Explained Using Stick Figures
This video is about gravitational waves in the weak field limit as discovered by the LIGO collaboration, explained by parallels to electromagnetic radiation, sound waves, water waves, etc. I want to see Cat LIGO ASAP!
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.
MinutePhysics
Common Physics Misconceptions
What if you thought the earth was flat? And then you found out it isn't?
MinutePhysics
Black Holes, Neutron Stars, and White Dwarfs (Collab. w/ MinuteEarth)
This video is about the differences between the corpses or final degenerate dense star forms that dead stars take: black holes, neutron stars, and white dwarfs. The main distinguishing features between them are the mass cutoffs...
TED-Ed
TED-Ed: Could we build a miniature sun on Earth? | George Zaidan
Stars have cores hot and dense enough to force atomic nuclei together, forming larger, heavier nuclei in a process known as fusion. In this process, the mass of the end products is slightly less than the mass of the initial atoms. But...
SciShow
Why NASA Put The Moon In A Pool
NASA has been using swimming pools to train astronauts since the 1960s. The largest is the Neutral Buoyancy Laboratory (NBL), which holds roughly 9 olympic pools worth of water and has contained not just mockups of space station and...
SciShow
This Light is a Different Kind of Invisible
Dark matter's most famous trait is its inability to interact with light, the particle version of which we call "photons". But in their attempts to figure out exactly what dark matter is, some scientists have proposed "dark photons".
SciShow
Does Antimatter Fall?
In September 2023, a group of scientists from CERN published the first results from the ALPHA-g experiment, which seeks to figure out how antimatter responds to the force of gravity. Does it fall like regular matter? Does it not interact...
SciShow Kids
How Will Humans Live on Mars? | Let's Explore Mars! | SciShow Kids
Squeaks and Jessi would love to visit Mars one day, but our neighboring planet is very different from Earth. Together, they make a travel plan and packing list that will help them overcome the challenges of life on Mars! Thanks to our...
SciShow
What We Know, And Still Don’t Know, About the Dark Side of the Moon | Compilation
More than a classic rock album that'll change your life, this classic space rock has a dark side that has mystified scientists for centuries.