TED-Ed
TED-ED: The history of tattoos - Addison Anderson
If you have a tattoo, you're part of a rich cultural history that dates back at least 8,000 years. Where did this practice of body modification come from, and how has its function changed over time? Addison Anderson tracks the history of...
SciShow
Bioprecipitation: How Bacteria Makes Snow
Raindrops and snowflakes generally start to form around something else in the air, like a speck of dust, but sometimes that something else is bacteria.
Crash Course
How Does Disease Move? Crash Course Geography
From outbreaks of measles in the United States and cholera in Haiti to patterns of lead poisoning near gold mines in Nigeria, medical geographers play an important role in tracking disease in the landscape. Today, we're going to look at...
Crash Course
The Big Bang: Crash Course Big History
In which John Green, Hank Green, and Emily Graslie teach you about, well, everything. Big History is the history of everything. We're going to start with the Big Bang, take you right through all of history (recorded and otherwise), and...
SciShow
Is Mind Control Possible? | Compilation
The human brain is complex and awe-inspiring, so of course we have been trying to figure out how to control it. From electricity to light, here are some of the ways we have attempted to command our wrinkly thinkers.
Crash Course
The Bobo Beatdown - Crash Course Psychology
In this episode of Crash Course Psychology, Hank talks about how we learn by observation... and how that can mean beating the tar out of an inanimate clown named Bobo. -- Table of Contents Limitations of Classical and Operant...
Crash Course
Modern Life: Crash Course European History
So, "modern" is kind of a loaded term, but today we're going to talk about modern life in Europe, as it looked around the time the 19th century turned into the 20th. We'll look at what life was like in the rapidly growing urban centers...
TED Talks
TED: The leaders who ruined Africa, and the generation who can fix it | Fred Swaniker
Before he hit eighteen, Fred Swaniker had lived in Ghana, Gambia, Botswana and Zimbabwe. What he learned from a childhood across Africa was that while good leaders can't make much of a difference in societies with strong institutions, in...
TED Talks
Halla Tómasdóttir and Bryn Freedman: The crisis of leadership -- and a new way forward
What should modern leadership look like? Entrepreneur and former Icelandic presidential candidate Halla Tómasdóttir thinks global leaders need to change their ways -- or risk becoming irrelevant. In a conversation with curator Bryn...
TED-Ed
TED-Ed: A day in the life of an Aztec midwife
The midwife Xoquauhtli has a difficult choice to make. She owes a debt to her patron Teteoinnan, the female warrior goddess at the center of the Aztec seasonal festival, who must be kept happy or she will bring bad luck. Xoquauhtli...
Crash Course
The Economics of Healthcare: Crash Course Econ
Why is health care so expensive? Once again, there are a lot of factors in play. Jacob and Adriene look at the many reasons that health care in the US is so expensive, and what exactly we get for all that money. Spoiler alert: countries...
TED Talks
TED: How the new generation of Latinx voters could change US elections | María Teresa Kumar
A historic number of Latinx voters participated in the 2020 US presidential election, including a record number of young people casting their ballots for the first time. Civic leader María Teresa Kumar takes a look at the issues closest...
TED-Ed
TED-Ed: Are the Illuminati real? | Chip Berlet
The year was 1776. In Bavaria, new ideals of rationalism, religious freedom and universal human rights competed with the Catholic church's heavy influence over public affairs. Adam Weishaupt, a law professor frustrated with the Church's...
TED Talks
TED: The future of psychedelic-assisted psychotherapy | Rick Doblin
* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. Could psychedelics help us heal from trauma and mental illnesses? Researcher Rick Doblin has spent the past three...
Crash Course
How Presidents Govern: Crash Course Government and Politics
This week Craig Benzine talks about how the president gets things done. Filling the role of the executive branch is a pretty big job - much too big for just one person. It's so big that the president employs an entire federal...
TED Talks
TED: Why museums are returning cultural treasures | Chip Colwell
Archaeologist and curator Chip Colwell collects artifacts for his museum, but he also returns them to where they came from. In a thought-provoking talk, he shares how some museums are confronting their legacies of stealing spiritual...
TED Talks
TED: A bold plan to protect 30 percent of the Earth's surface and ocean floor | Enric Sala
As a diver in the 1970s, marine ecologist Enric Sala saw once-lush oceanscapes reduced to underwater deserts -- but later, in marine preserves across the globe, he also witnessed the ocean's power to rejuvenate itself when left to its...
SciShow
Why Are Some Animal Babies So Helpless
Have you ever noticed that some animal babies, like baby deer, can walk around basically right after they're born, but other animal babies, like kittens, can't even open their eyes? There’s a reason for that, and it comes down to two...
TED Talks
Kristen Wenz: What if a single human right could change the world?
More than a billion people worldwide, mostly children, do not have a legal identity. In many countries, this means they can't get access to vital services like health care and education, says legal identity expert Kristen Wenz. She...
MinuteEarth
How to Make a Seashell - Just Add Water
Why do shell building living creatures live near the surface of the ocean? Learn how chemistry creates a dissolving depth for calcium and determines where shell builders can live.
TED-Ed
TED-Ed: The most important anus in the ocean
Is it a fuzzy sock? An overripe banana? A moldy tube of toothpaste? In fact, it’s a humble sea cucumber: a brainless, fleshy form surrounding a digestive tract, and bookended by a mouth and an anus. And while it might look odd, its daily...
SciShow
Engrams Where Your Brain Keeps Memories
A memory isn’t stored in your brain in a neat little package, but is instead spread across a pattern of cells in different regions. What's more, understanding this process could open the door to better treatments for conditions like...
SciShow
3 Baffling Depression Treatments and Why They Might Work
Scientists have found some effective alternative treatments for patients with treatment-resistant depression, but they are not exactly sure why these treatments work.
Crash Course
Climate Change, Chaos, and The Little Ice Age - Crash Course World History 206
In which John Green teaches you about the Little Ice Age. The Little Ice Age was a period of global cooling that occurred from the 13th to the 19th centuries. This cooling was likely caused by a number of factors, including unusual solar...