TED-Ed
TED-Ed: The rise of modern populism | Takis S. Pappas
In many democratic countries, charismatic leaders vilify political opponents, disparage institutions, and claim to be for the people. Some critics label this approach as authoritarian or fascist, while others argue that these leaders are...
SciShow
Sun VS. Atomic Bomb
Hank puts the immense power of the sun into perspective through comparison with the most powerful nuclear bomb ever detonated.
SciShow
How Psychics Exploit Our Cognitive Biases
A fortuneteller's ability to read your future might seem magical, but those “psychic powers” have way more to do with psychology than the supernatural. Chapters cognitive biases 0:09 COLD READING 0:29 Barnum effect 1:28 subjective...
Crash Course
Unit Conversion & Significant Figures: Crash Course Chemistry
A unit is the frequently arbitrary designation we have given to something to convey a definite magnitude of a physical quantity and every quantity can be expressed in terms of the seven base units that are contained in the international...
Crash Course
Monopolies and Anti-Competitive Markets: Crash Course Economics
What is a monopoly? It turns out, it's more than just a board game. It's a terrible, terrible economic practice in which giant corporations dominate markets and hurt consumers. Except when it isn't. In some industries, monopolies are the...
TED-Ed
Who were Las Mariposas, and why were they murdered? | Lisa Krause
For over 30 years, thousands of people were imprisoned, tortured, and murdered under Rafael Trujillo's dictatorship in the Dominican Republic. Three sisters would go on to lead an underground revolution. But while their courage inspired...
Crash Course
Electric Current: Crash Course Physics
So, electric current works like a river... kinda... Instead of flowing based on elevation, electric current works a little differently. But it's a good metaphor. In this episode of Crash Course Physics, Shini talks to us about electric...
TED Talks
TED: The case for a decentralized internet | Tamas Kocsis
Who controls the internet? Increasingly, the answer is large corporations and governments -- a trend that's threatening digital privacy and access to information online, says web developer Tamas Kocsis. In this informative talk, Kocsis...
SciShow
What We Learned by Putting Cars on the Moon
To expand their range on visits to the moon, astronauts needed a way to travel faster, go farther, and carry more than walking provided. Thankfully, they had the Lunar Roving Vehicle.
TED-Ed
TED-Ed: History vs. Vladimir Lenin - Alex Gendler
Vladimir Lenin overthrew Russian Czar Nicholas II and founded the Soviet Union, forever changing the course of Russian politics. But was he a hero who toppled an oppressive tyranny or a villain who replaced it with another? Alex Gendler...
Crash Course
Gender Stratification: Crash Course Sociology
Today we’re looking at how society becomes stratified along gender lines. We’ll discuss Raewyn Connell’s concept of hegemonic masculinities and emphasized femininities. We’ll explore gender socialization in the home, media, and schools....
SciShow
6 Weird Units of Measurement We're Still Using for Some Reason
You might be benefiting from the weird units you've never heard every time you put on your shoes or read about dark matter.
SciShow
Hydrogen: The Savior of the Shipping Industry
Huge container ships relying on fossil fuels transport all kinds of goods across the ocean, creating a huge climate change impact. But there's a better way to power this transport using, of all things, water.
Bozeman Science
Exponential Growth
Paul Andersen explains how populations experience exponential. He begins by address the major players; N (population size) and r (growth rate). He models population growth in rabbits through four generations. He then shows you how to use...
TED-Ed
TED-Ed: The Romans flooded the Colosseum for sea battles - Janelle Peters
Starting in 80 CE, residents of Rome and visitors from across the Roman Empire would fill the stands of the Colosseum to see gladiators duel, animals fight and chariots race around the arena. And for the grand finale, water poured into...
TED Talks
Taylor Wilson: My radical plan for small nuclear fission reactors
Taylor Wilson was 14 when he built a nuclear fusion reactor in his parents' garage. Now 19, he returns to the TED stage to present a new take on an old topic: fission. Wilson, who has won backing to create a company to realize his...
TED Talks
We need to talk about an injustice - Bryan Stevenson
* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. In an engaging and personal talk -- with cameo appearances from his grandmother and Rosa Parks -- human rights...
TED Talks
Eric X. Li: A tale of two political systems
It's a standard assumption in the West: As a society progresses, it eventually becomes a capitalist, multi-party democracy. Right? Eric X. Li, a Chinese investor and political scientist, begs to differ. In this provocative,...
TED-Ed
TED-Ed: The mathematical secrets of Pascal's triangle - Wajdi Mohamed Ratemi
Pascal's triangle, which at first may just look like a neatly arranged stack of numbers, is actually a mathematical treasure trove. But what about it has so intrigued mathematicians the world over? Wajdi Mohamed Ratemi shows how Pascal's...
TED Talks
Keren Elazari: Hackers: the Internet's immune system
The beauty of hackers, says cybersecurity expert Keren Elazari, is that they force us to evolve and improve. Yes, some hackers are bad guys, but many are working to fight government corruption and advocate for our rights. By exposing...
TED-Ed
TED-ED: Everything you need to know to read "Frankenstein" - Iseult Gillespie
In 1815, Lord Byron proposed a challenge to a few literary guests he had gathered in his house on Lake Geneva: Who could write the most chilling ghost story? This question sparked an idea in eighteen-year-old Mary Shelley who, over the...
SciShow
Electromagnetism - Magnetic Force: The Four Fundamental Forces of Physics #4b
In this final segment on the four fundamental forces of physics, Hank tackles the magnetic force, the second of the two ways in which electromagnetism is apparent in the universe
TED-Ed
TED-ED: How does the thyroid manage your metabolism? - Emma Bryce
Nestled in the tissues of your neck is a small, unassuming organ that wields enormous power over your body: the thyroid. Emma Bryce explains how the thyroid, like the operations manager in a company, is tasked with making sure that all...
TED-Ed
TED-ED: Biodiesel: The afterlife of oil - Natascia Radice
How could you dispose of your cooking oil when you're done cooking? The easiest thing to do might be to pour it down your drain -- but if you save it up and send it to a processing plant, it can gain useful new life as biodiesel, a...