TED-Ed
TED-Ed: The 4 greatest threats to the survival of humanity | TED-Ed
With the invention of the atomic bomb, humanity gained the power to destroy itself for the first time in our history. Since then, our risk of either extinction or the collapse of civilization has steadily increased. Just how likely are...
MinuteEarth
Is Climate Change Just a Lot of Hot Air?
Want to learn more about the topic in this week's video? Here are some key words/phrases to get your googling started: - extreme weather - Conditions and events that occur with low frequency, but which often have significant impact on...
TED Talks
Joseph Nye: Global power shifts
Historian and diplomat Joseph Nye gives us the 30,000-foot view of the shifts in power between China and the US, and the global implications as economic, political and "soft" power shifts and moves around the globe.
TED-Ed
TED-Ed: This weird trick will help you summon an army of worms | Kenny Coogan
In the middle of Florida's Apalachicola National Forest, a bizarre, almost magical scene is unraveling. Sliding a metal strip over a wooden stake, a master summoner is sending deep croaking noises reverberating throughout the area. And,...
Be Smart
Einstein Was Right: Gravitational Waves Edition
A theory of physics 100 years in the making.
TED-Ed
TED-Ed: History's "worst" nun | Theresa A. Yugar
Juana Ramírez de Asbaje sat before a panel of prestigious theologians, jurists, and mathematicians. They had been invited to test Juana's knowledge with the most difficult questions they could muster. But she successfully answered every...
TED-Ed
TED-ED: When will the next ice age happen? - Lorraine Lisiecki
Throughout Earth's history, climate has varied greatly. For hundreds of millions of years, the planet had no polar ice caps. Without this ice, the sea level was 70 meters higher. At the other extreme, about 700 million years ago, Earth...
SciShow
The Unexpected Connection Between Estrogen and Autism | SciShow News
There's a lot we don't understand about autism spectrum disorder, but this week scientists announced that they may have found a link between the disorder and elevated hormone levels.
Be Smart
How to Figure Out the Day of the Week For Any Date Ever
You might think that computers are the only things that run algorithms, but you're wrong. Here's a neat mental trick for calculating the day of the week for any day ever, developed by famous mathematician John H. Conway.
TED-Ed
TED-Ed: A brief history of chess - Alex Gendler
Trace the storied history of the game of chess, from its origins in 7th century India to the computer software we use today. -- The attacking infantry advances, their elephants already having broken the defensive line. The king tries to...
SciShow
3 Ways the Milky Way Will Change During Your Lifetime
It’s easy to imagine that our galaxy is basically frozen in time from the perspective of a human lifespan, but in fact, the Milky Way is incredibly dynamic and will undergo some pretty amazing changes in only a few decades!
TED Talks
Alex Tabarrok: How ideas trump crises
The "dismal science" truly shines in this optimistic talk, as economist Alex Tabarrok argues free trade and globalization are shaping our once-divided world into a community of idea-sharing more healthy, happy and prosperous than...
SciShow
Are There Really Insects in Yogurt?
Do you think your strawberry yogurt is purely colored by the natural color of berries? Think again!
TED-Ed
TED-Ed: Why doesn't the Leaning Tower of Pisa fall over? | Alex Gendler
In 1990, the Italian government enlisted top engineers to stabilize Pisa's famous Leaning Tower. There'd been many attempts during its 800 year history, but computer models revealed the urgency of their situation. The tower would topple...
TED-Ed
TED-ED: The history of Tea - Shunan Teng
Tea is the second most consumed beverage in the world after water __ and from sugary Turkish Rize tea to salty Tibetan butter tea, there are almost as many ways of preparing the beverage as there are cultures on the globe. Where did this...
TED Talks
TED: The world in 2200 | Pete Alcorn
In this short, optimistic talk from TED2009, Pete Alcorn shares a vision of the world of two centuries from now -- when declining populations and growing opportunity prove Malthus was wrong.
TED-Ed
TED-Ed: Pazit Cahlon and Alex Gendler: What "Machiavellian" really means
From Shakespeare's plays to modern TV dramas, the unscrupulous schemer for whom the ends always justify the means has become a familiar character type we love to hate. For centuries, we've had a single word to describe such characters:...
Crash Course
Nonviolence and Peace Movements: Crash Course World History 228
In which John Green teaches you about nonviolence and peace movements in the 20th century. What is nonviolence? What is a peace movement? Well. traditionally, humans often resort to violence when they come into conflict. In the 20th...
TED Talks
Kristie Ebi: How climate change could make our food less nutritious
Rising carbon levels in the atmosphere can make plants grow faster, but there's another hidden consequence: they rob plants of the nutrients and vitamins we need to survive. In a talk about global food security, epidemiologist Kristie...
SciShow
Filippo Brunelleschi: Great Minds
Hank talks about Renaissance architect, engineer, and professional cranky guy Filippo Brunelleschi in this "Great Minds" dose.
TED-Ed
TED-Ed: What is obesity? - Mia Nacamulli
Obesity is an escalating global epidemic. It substantially raises the probability of diseases like diabetes, heart disease, stroke, high blood pressure, and cancer. But what is the distinction between being overweight and being obese?...
TED-Ed
TED-Ed: A brief history of plastic | TED-Ed
For centuries, billiard balls were made of ivory from elephant tusks. But when excessive hunting caused elephant populations to decline, they began to look for alternatives. John Wesley Hyatt took up the challenge. In five years, he...
SciShow
The Greatest Failed Experiment Ever
In this episode SciShow Space we talk about the aether...which hasn't been proven.