SciShow
Would You Be Able to See Through Superman’s Disguise?
You might have wondered if putting on or taking off glasses is enough to completely transform Clark Kent/Superman’s appearance. Researchers have looked into this, and the result is pretty surprising.
SciShow
How Bad Helmets Gave Us a Map of Vision
The Brodie helmet, widely used during the first World War, had some serious design flaws, . But thanks to those flaws we now have a staggeringly accurate map of the brain.
3Blue1Brown
Euler's Formula and Graph Duality
A very clever proof of Euler's characteristic formula using spanning trees.
Crash Course
Expansion and Resistance: Crash Course European History
In 19th century Europe, with nation building well under way, thoughts turned outward, toward empire. This week, we're looking at how Europeans expanded into Africa, Asia, and Oceania during the 1800s. You'll learn about China and the...
SciShow
What Do Mirror Neurons Really Do?
Mirror neurons are a very cool part of our brains but some people are taking it way further by making claims that they are responsible for telepathy and ESP. It goes without saying that this isn’t true, but what exactly do mirror neurons...
TED-Ed
TED-Ed: Vultures: The acid-puking, plague-busting heroes of the ecosystem | Kenny Coogan
In the African grasslands, a gazelle suffering from tuberculosis takes its last breath. The animal's corpse threatens to infect the water, but for the vulture, this isn't a problem: it's a feast. With a stomach of steel that can digest...
TED-Ed
TED-ED: How do we smell? - Rose Eveleth
An adult human can distinguish up to 10,000 odors. You use your nose to figure out what to eat, what to buy and even when it's time to take a shower. But how do the molecules in the air get translated into smells in your brain? Rose...
SciShow
Water Is WAY Weirder Than We Thought
Water is one of the most abundant and important substances on Earth, so you think we'd know everything there is to know about it. But it turns out water is way weirder, and it often behaves in ways that leave scientists with more...
MinuteEarth
Why Apple Pie Isn't American
Our diets are more global than we realize, because our common food crops and animals were domesticated far away in diverse locations. __________________________________________ If you want to learn more about this topic, start your...
Crash Course
Polarity Resonance and Electron Pushing - Crash Course Organic Chemistry
We’ve all heard the phrase “opposites attract.” It may or may not be true for people, but it’s definitely true in organic chemistry. In this episode of Crash Course Organic Chemistry, we’re learning about electronegativity, polarity,...
TED-Ed
TED-ED: How bones make blood - Melody Smith
Bones might seem rock-solid, but they’re actually quite porous inside. Most of the large bones of your skeleton have a hollow core filled with soft bone marrow. Marrow's most essential elements are blood stem cells and for patients with...
SciShow
We Hadn't Sequenced the Human Genome...Until Now | SciShow News
Researchers have unlocked the final gaps in the human genome, and what they tell us could mean big waves for the future of medicine.
TED-Ed
TED-Ed: Are we running out of clean water? - Balsher Singh Sidhu
Despite water covering 71% of the planet’s surface, more than half the world’s population endures extreme water scarcity for at least one month a year. Current estimates predict that by 2040, up to 20 more countries could be experiencing...
SciShow
Victorian Pseudosciences: Brain Personality Maps
in 19th-century England, scientists were figuring out that certain parts of our brains were connected with certain parts of our bodies- but they came up with some terrible and misleading ideas that spread without rigorous scientific...
Crash Course
Geographies of the Future: Crash Course Geography
In our final episode of Crash Course Geography we're going to take a look towards the future, and to do that we'll need to revisit our fundamental geography tools: space, place, and human-environment interactions! We'll talk about the...
Crash Course
Life and Longevity: Crash Course History of Science
It's time to have a look at the future of human life and how technology could possibly extend longevity. But, within that tech, are questions of ethics that are not always at the top of mind when the tech is being developed. In this...
Crash Course
The Vikings! - Crash Course World History 224
In which John Green teaches you about Vikings! That's right, one of our most requested subjects, the Vikings, right here on Crash Course. So what's the deal with Vikings? Well, the stuff you've heard about them may not be true. The...
SciShow
Is Coding a Math Skill or a Language Skill? Neither? Both?
There are aspects of computer code that look like language and some that seem more like algebra, and since we may be headed for a future where many people will need to learn to code, researchers are interested in figuring out how exactly...
SciShow
Why Stimulants Help ADHD
It seems like stimulants and hyperactivity shouldn't mix, so why are they so often prescribed to treat ADHD?
TED-Ed
TED-Ed: Iceland's superpowered underground volcanoes | Jean-Baptiste P. Koehl
While the weather in Iceland is often cold, wet, and windy, a nearly endless supply of heat bubbles away below the surface. In fact, almost every building in the country is heated by geothermal energy in a process with virtually no...
PBS
The Honeycombs of 4-Dimensional Bees ft. Joe Hanson
Why is there a hexagonal structure in honeycombs? Why not squares? Or asymmetrical blobby shapes? In 36 B.C., the Roman scholar Marcus Terentius Varro wrote about two of the leading theories of the day. First: bees have six legs, so they...
SciShow
Are There Male and Female Brains?
If you looked at a male and female brain side by side, would you be able to see any differences?
Curated Video
Why So Few People Live In This HUGE Area In The Middle Of Spain
Spain is the fourth largest country in the European Union by population with more than 48 million people. Despite this, the vast majority of these people live either within the Madrid metropolitan area or within cities on the coast. This...
Curated Video
The History and Evolution of Sailboats: From Ancient Wayfinding to Modern Innovations
This video explores the history of sailboats, from ancient times to the modern era. It highlights the early forms of sailing and the techniques used for navigation without modern tools. The video also discusses key innovations that have...