TED-Ed
TED-Ed: The breathtaking courage of Harriet Tubman - Janell Hobson
Escaping slavery; risking everything to save her family; leading a military raid; championing the cause of women's suffrage; these are just a handful of the accomplishments of one of America's most courageous heroes. Janell Hobson...
Crash Course
The Cold War in Asia Crash Course US History
In which John Green teaches you about the Cold War as it unfolded in Asia. As John pointed out last week, the Cold War was occasionally hot, and a lot of that heat was generated in Asia. This is starting to sound weird with the hot/cold...
TED Talks
Hendrik Poinar: Bring back the woolly mammoth!
It’s the dream of kids all around the world to see giant beasts walk the Earth again. Could -- and should -- that dream be realized? Hendrik Poinar talks about the next big thing: the quest to engineer a creature that looks very much...
SciShow
3 Times Scientists Did Weird Experiments With Rubber Ducks
Rubber ducks aren’t just good for some bath time fun, they’ve also helped scientists learn about the world!
Bozeman Science
Magnetic Permeability
In this video Paul Andersen explains how the magnetic permeability is the ability of a material to form internal magnetic fields. The magnetic permeability of free space is a constant and is much lower than the magnetic permeability of...
SciShow
Why Was the Islamic Golden Age of Science… Golden?
Around 750-1250 CE, the Islamic empire made incredible scientific advancements that still influence many fields of research today. What we know about some of the great minds of that time, as well as what we’ve learned from modern...
SciShow
Magnificent Magnetic Fields | Compilation
Magnetic fields fill our universe, but here at home we have a very special one that nature uses in a myriad of ways. And further away, other magnetic fields give us fascinating glimpses into the nature of the universe!
Crash Course
Naked Eye Observations
Today on Crash Course Astronomy, Phil invites you to head outside and take a look at all the incredible things you can see with your naked eye.
TED-Ed
TED-ED: What's so great about the Great Lakes? - Cheri Dobbs and Jennifer Gabrys
The North American Great Lakes - Huron, Ontario, Michigan, Erie, and Superior - are so big that they border 8 states and contain 23 quadrillion liters of water. They span forest, grassland, and wetland habitats, supporting a region...
SciShow Kids
Make Your Own Compass!
Mister Brown and Squeaks are here to teach you all about the compass - and they will even help you make your own! NGSS Performance Expectations: 3-PS2-3: Ask questions to determine cause and effect relationships of electric or magnetic...
SciShow
The Equator Is a Bad Place for These Rocket Launches
Some satellites orbit in the same direction the planet rotates, which means they get a boost for their launch, but most have orbits where that isn’t ideal, and that creates some challenges for engineers.
Bozeman Science
Magnetic Dipole Moment
The magnetic dipole moment is the torque experienced by a material placed in a magnetic field. The magnetic dipole is an intrinsic property at the magnet, domain, atom, and electron level. A magnetic dipole creates magnetic fields that...
SciShow
What Makes Earth’s Magnetic Field Change Direction?
You might have heard that Earth is due for a complete flip of its magnetic field. And while our planet does have a history of this behavior, predictions of when it might happen are too complex to estimate a date for.
MinutePhysics
TOP 10 REASONS Why We Know the Earth is Round
TOP 10 REASONS Why We Know the Earth is Round
Bozeman Science
Magnetic Field of a Dipole
In this video Paul Andersen explains how current moving through a loop of wire can act as an analog for a magnetic dipole. Magnetic dipoles (like compass needles) respond to magnetic fields created by other magnets.
SciShow Kids
How Animals Find Their Way Home!
Jessi and Squeaks are back from their research trip and ready to keep learning with all of you! And on their trip back to The Fort, Jessi thought up a really interesting questions: how do animals find their way home?
SciShow
Can You Make an Accurate Map?
Earth is not flat. So, representing it on a flat surface can be challenging and always requires compromises.
Bozeman Science
Measuring the Magnetic Force
In this video Paul Andersen explains how a magnetic force arises when magnets or moving electric charges interact with one another. A magnetic dipole will orient towards a magnetic field. When an electric charge is moving it will...
TED-Ed
TED-Ed: The infamous and ingenious Ho Chi Minh Trail - Cameron Paterson
The Ho Chi Minh Trail not only connected North and South Vietnam during a brutal war but also aided Vietnamese soldiers. The trail shaved nearly five months of time off of the trip and was used as a secret weapon of sorts. Cameron...
SciShow
Did We Find Longitude Thanks To A...Clock?
The equator is a clear and accurate line around Earth that makes measuring latitude a precise science, but when it came to figuring out how to do that with longitude, British sailors were at a loss. Until they devised a competition.
Crash Course
Magnetism: Crash Course Physics
You’re probably familiar with the basics of magnets already: They have a north pole and a south pole. Two of the same pole will repel each other, while opposites attract. Only certain materials, especially those that contain iron, can be...
Crash Course
How Did Religion Spread Along the Silk Road? Crash Course Geography
Today we’re going to talk about the collection of routes known as the Silk Roads, and explore how worldview and other ideas spread along those trade routes. The Silk Roads are responsible for everything from the spices we use when we...
Crash Course
The Civil War Part 2 Crash Course US History
In which John Green teaches you how the Civil War played a large part in making the United States the country that it is today. He covers some of the key ways in which Abraham Lincoln influenced the outcome of the war, and how the lack...