PBS
The Real Science of the EHT Black Hole
So, how do you take a picture of a black hole? The beast in question is the supermassive black hole in the center of this – the M87 elliptical galaxy. It has an estimated mass of several billion times that of the Sun, which gives it an...
PBS
Why String Theory is Wrong
There’s this idea that beauty is a powerful guide to truth in the mathematics of physical theory. String theory is certainly beautiful in the eyes of many physicists. Beautiful enough to pursue even if it’s wrong? Hermann Weyl once said,...
SciShow
Earth's Not-So-Juicy Center
Hank takes us on a journey to center of the Earth to explain both how the solid core formed and why it is so important for life as we know it.
MinutePhysics
The Black Hole Tipping Point
This video is about the Schwarzschild radius of a black hole, (its "event horizon"), and how much mass and density is required to reach the point of no return where an object like a star, neutron star, red giant, etc will collapse into a...
SciShow
Happy Tau Day!
June 28 is Tau Day! Join SciShow as we celebrate circles by exploring the many uses of twice pi.
PBS
How to See Black Holes + Kugelblitz Challenge Answer
Quasars, X-ray Binaries and Supermassive voids at the center of our galaxies .... black holes take many forms. In this episode Matt tells us what these different types of black holes are and how scientists are using VLBI, Very Long...
SciShow
Our Galaxy Could Be Full of Exoplanets with Oceans | SciShow News
Earlier this spring NASA announced a new research model that predicts that ocean worlds are far from rare, and our galaxy might be full of them. And a new study examines evidence that Pluto may have had an underground ocean all along!
SciShow
If the Sun Became a Black Hole Would Earth Fall In
If our sun turned into a black hole, you might think our solar system would be doomed, but in reality that's just not how black holes work.
3Blue1Brown
Essence of calculus, chapter 1
An overview of what calculus is all about, with an emphasis on making it seem like something students could discover for themselves. The central example is that of rediscovering the formula for a circle's area, and how this is an...
PBS
Is the Moon in Majora's Mask a Black Hole?
It's easy to take things at face value in video games. But when we take a deeper dive into the physics in The Legend of Zelda: Majora's Mask, it seems that the "MOON" might be one of those things that isn't quite what it seems. Given its...
PBS
Escape The Kugelblitz Challenge
In the last episode Matt discussed how the Penrose Diagram enabled you to map how black holes affect Space Time. In this episode you can use that knowledge to stop an all-too-real threat to our planet. Aliens are trying to destroy the...
Bozeman Science
Conservation of Angular Momentum
In this video Paul Andersen explains that the angular momentum of a system will be conserved as long as there is no net external torque. Both point objects and extended objects are covered along with several examples.
TED Talks
TED: The hunt for a supermassive black hole | Andrea Ghez
With new data from the Keck telescopes, Andrea Ghez shows how state-of-the-art adaptive optics are helping astronomers understand our universe's most mysterious objects: black holes. She shares evidence that a supermassive black hole may...
3Blue1Brown
How pi was almost 6.283185
Happy pi day! Did you know that in some of his notes, Euler used the symbol pi to represent 6.28..., before the more familiar 3.14... took off as a standard?
PBS
How to Estimate the Density of the Moon in Majora's Mask
Gabe breaks down the steps for how he determined the density of the moon in Majora's Mask.
SciShow
3 Planets That Shouldn't Exist
We explore several exoplanets whose features make us think they shouldn't even have been able to form in the first place!
SciShow
Dark Matter is Slowing Down the Milky Way
The effects of dark matter on galaxies is a mystifying and difficult thing to study, but the Milky Way's galactic bar might present an exciting way to quantify how much of it exists!
SciShow
3 Ways Pi Can Explain Practically Everything
What’s irrational and never ends? Pi! Hank explains how we need pi to explain some of the most basic but most important principles of the universe, in honor of Pi Day.
Bozeman Science
Rotational Inertia
In this video Paul Andersen explains how the angular momentum of an object if a product of the rotational inertia and the angular velocity. The rotational inertia depends on the mass, radius and shape of the rotating objects. A sample...
Bozeman Science
Gravitational Mass
In this video Paul Andersen explains how the gravitational mass is a measure of the force on an object in a gravitational field. The gravitational mass is based on the amount of material in an object and can be measured to a standard kg...
SciShow
Earth's Not-So-Juicy Center
Hank takes us on a journey to center of the Earth to explain both how the solid core formed and why it is so important for life as we know it.
Bozeman Science
Angular Momentum of a System
In this video Paul Andersen explains how the angular momentum of a system can be calculated by determining the angular momentum of all individual objects within the system. An inquiry activity using a gyroscope is also included.
Bozeman Science
Electric Field of a Sphere
In this video Paul Andersen explains how the electric field strength decreases as the square of the radius as you move away from a point charge, or a uniform distribution of charge on a sphere. This is a direct application of Coulomb's Law.