Crash Course
The Sun
Phil takes us for a closer (eye safe!) look at the two-octillion ton star that rules our solar system. We look at the sun's core, plasma, magnetic fields, sunspots, solar flares, coronal mass ejections, and what all of that means for our...
SciShow
Why Space Over South America is Deadly for Satellites
There's a region of Earth's atmosphere known as the South Atlantic Anomaly, and it’s one of the most dangerous near-Earth areas of space, both for satellites and humans.
SciShow
New Jupiter Weirdness From Juno
Astronomers have announced the Juno space probe’s first findings from Jupiter!
SciShow
Let's Nuke Mars!
Elon Musk thinks that we can make Mars habitable by nuking it. But would that really work?
MinutePhysics
MAGNETS - How Do They Work
How do magnets work? Why do they attract and repel at long distances? Is it magic? No... it's quantum mechanics, and a bit more, as we explain in this, the longest MinutePhysics video ever.
SciShow Kids
Fun with Magnets!
Jessi brought one of her favorite toys to the fort, a magnet! Let's see what it can stick to!
Curated Video
Why Is the Speed of Light Constant? Visualizing Maxwell’s Equations
New ReviewNot only do they describe every electrical and magnetic phenomenon, but hidden within these equations is a fundamental truth about the nature of light, and why it is the ultimate speed of the universe. We are going to visualize the...
Curated Video
The Insane power of a Hypernova
New ReviewStars represent a celestial battle of two opposing forces, gravity trying to collapse the star, and radiation pressure trying to explode the star. But it comes to an end close to the time that it runs out of fuel. Gravity then collapses...
Wonderscape
The Fascinating World of Bird MigrationThinking question
Science Kids Birds and Bird Migration V1-0004 Birds have an extraordinary ability to navigate during migration, utilizing a combination of internal compasses and maps. Studies have shown that birds can find their way home over great...
Curated Video
Earth’s Magnetic Field Almost Disappeared
The magnetic barrier that protects Earthlings from radiation almost collapsed some 565 million years ago. Here’s what saved it.
Curated Video
Magnetic poles
Pupil outcome: I can describe how magnets can attract magnetic materials, as well as attract and repel other magnets. Key learning points: - All magnets have a north–seeking pole and a south–seeking pole. - Unlike magnetic poles attract...
Curated Video
Electromagnets
Pupil outcome: I can describe how to make a magnet using an electric current. Key learning points: - When there is an electric current in a wire, there is a magnetic field around the wire. - When there is an electric current in a coil of...
Astrum
The Best Earth-like Exoplanet Has Major Problems
Why Earth 2.0 may not be such a feasible place for people to live.
Astrum
Findings from NASA's Juno spacecraft
It's been three years since NASA's Juno spacecraft arrived at Jupiter. But what has it seen and discovered? We will examine Jupiter's magnetic field, core, bands, aurora, atmosphere, storms and clouds.
Curated Video
Stern-Gerlach Experiment and spin quantum number : Revealing Electron Spin
The Stern-Gerlach experiment, which took place in 1922, was the most important proof that electrons have spin and that they have a spin quantum number. A stream of silver atoms was sent through an experiment using a magnetic field that...
Veritasium
Can Humans Sense Magnetic Fields?
Research has found some human brains can pick up on rotations of geomagnetic-strength fields as evidenced by drops in alpha wave power following stimulus.
Curated Video
Electromagnetic Waves: The Spectrum of Light
Electromagnetic waves are fundamental to understanding the nature of light and are oscillations of electric and magnetic fields that travel through space, carrying energy from one place to another. The spectrum of light is a small...
Curated Video
J.J. Thomson's Charge-to-Mass Ratio Experiment
In 1897, J.J. Thomson conducted an experiment that led to the discovery of the electron and revolutionized atomic theory by demonstrating that atoms are composed of smaller subatomic particles. Before this, atoms were considered...
Curated Video
Cathode Rays Unleashed: Discovering Their Properties
Cathode Rays: Key Properties • Straight-Line Travel: Cathode rays travel in straight lines, casting sharp shadows. • Negatively Charged: Composed of negatively charged particles, specifically electrons, deflected by electric and magnetic...
Curated Video
Limitations of Bohr's Theory
Niels Bohr's Atomic Model Limitations • Primarily applied to hydrogen, not accounting for complexities of multi-electron atoms. • Oversimplified concept of fixed, circular orbits for electrons. • Failed to account for fine structure of...
Curated Video
Ferromagnetic and ferrimagnetic substances Magnetic Power
Ferromagnetic materials, such as Fe and Ni, exhibit permanent magnetism even when the magnetic field is removed. These materials are formed by the spontaneous alignment of magnetic moments due to unpaired electrons in the same direction....
Curated Video
Paramagnetic vs Diamagnetic Substances Magnetic Mystery
Materials can be classified based on their response to external magnetic fields. Diamagnetic materials are weakly repelled by external magnetic fields, while paramagnetic materials are attracted but lose their magnetism in the absence of...