SciShow
6 Types of Odd Body Armor
From medieval knights to face shields, humans are pretty big fans of armor. But it turns out that other organisms use armor, too! Except sometimes, their armor doesn’t look like anything we’d expect.
TED Talks
TED: A drone's-eye view of conservation | Lian Pin Koh
Ecologist Lian Pin Koh makes a persuasive case for using drones to protect the world's forests and wildlife. These lightweight autonomous flying vehicles can track animals in their natural habitat, monitor the health of rainforests, even...
Crash Course
Post-World War I Recovery: Crash Course European History
In which John Green looks at Europe's attempts to recover from the devastation of World War I and forge a lasting peace. The peace did not last. Today we're talking about the economic cultural recovery of the 1920s, and the economic...
SciShow
The Truth About 'Truth Serum'
Sodium pentothal, the so-called "truth serum,' is real! But does it work? Find out what "truth serums' do, and how your brain lets you tell lies.
Crash Course
World War II Civilians and Soldiers: Crash Course European History
Our look at World War II continues with a closer examination of just how the war impacted soldiers in the field, and the people at home. For many of the combatants, the homefront and the warfront were one and the same. The war disrupted...
TED Talks
Sebastian Junger: Why veterans miss war
Civilians don't miss war. But soldiers often do. Journalist Sebastian Junger shares his experience embedded with American soldiers at Restrepo, an outpost in Afghanistan's Korengal Valley that saw heavy combat. Giving a look at the...
TED Talks
Morley: "Women of Hope"
Inspired by Aung San Suu Kyi's call to action, "If you're feeling helpless, help someone," Morley composed this song. She sings it at TEDxWomen in her gorgeous, warm voice.
TED Talks
TED: Our lonely society makes it hard to come home from war | Sebastian Junger
Sebastian Junger has seen war up close, and he knows the impact that battlefield trauma has on soldiers. But he suggests there's another major cause of pain for veterans when they come home: the experience of leaving the tribal closeness...
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.
TED Talks
TED: Why I chose a gun | Peter van Uhm
Peter van Uhm is the Netherlands' chief of defense, but that does not mean he is pro-war. In this talk, he explains how his career is one shaped by a love of peace, not a desire for bloodshed -- and why we need armies if we want peace.
Crash Course
Archdukes, Cynicism, and World War I Crash Course World History
In which John Green teaches you about the war that was supposed to end all wars. Instead, it solved nothing and set the stage for the world to be back at war just a couple of decades later. As an added bonus, World War I changed the way...
SciShow
Why Psychology Tells Us What We Already Know
Hindsight bias skews our interpretation of events and information, making it seem like they were predictable or just not that surprising. This bias can cause some real problems, but the good news is, once you are aware of it, there are...
Crash Course
World War II, A War for Resources: Crash Course World History
In which John Green teaches you about World War II, and some of the causes behind the war. In a lot of ways, WWII was about resources, and especially about food. The expansionist aggression of both Germany and Japan were in a lot of ways...
TED Talks
TED: Why we're more honest with machines than people | Anne Scherer
TED talks about why we're more honest with machines than people | Anne Scherer
TED-Ed
TED-Ed: Can you solve the Alice in Wonderland riddle? | Alex Gendler
After many adventures in Wonderland, Alice has once again found herself in the court of the temperamental Queen of Hearts. She's about to pass through the garden undetected, when she overhears the king and queen arguing that 64 is the...
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...
Bozeman Science
The Immune System
Paul Andersen explains how your body protects itself from invading viruses and bacteria. He starts by describing the nonspecific immune responses of skin and inflammation. He then explains how we use antibodies to disrupt the function of...
Crash Course
The Holocaust,Genocides, and Mass Murder of WWII: Crash Course European History
During World War II, Nazi Germany undertook the imprisonment and summary execution of many of its own citizens, and citizens of the nations they occupied. One of the groups that came under assault was the European Jewish population. More...
Crash Course
World War I Battlefields: Crash Course European History
Europe's system of alliances and centuries-old tensions erupted into war in August of 1914. This week on Crash Course Euro, we're talking about the military history of World War I, and taking a look at the broad strokes of how the war...
TED-Ed
TED-Ed: The rise and fall of the Mongol Empire - Anne F. Broadbridge
Trace the rise and fall of the Mongol Empire which, under the leadership of Genghis Khan, became the largest contiguous land empire in history. -- It was the largest contiguous land empire in history— stretching from Korea to Ukraine,...
TED Talks
TED: Deaf in the military | Keith Nolan
Keith Nolan always wanted to join the United States military. The challenge: he is Deaf, which is an automatic disqualification according to military rules. In this talk, he describes his fight to fight for his country. (In American Sign...
TED-Ed
TED-Ed: What happens when you get heat stroke? - Douglas J. Casa
Have you ever suffered from exertional heat stroke? This condition is caused by intense activity in the heat and is one of the top three killers of athletes and soldiers in training. Douglas J. Casa explains heat stroke's tremendous...
Curated Video
The Life Of Geronimo (Part 1 of 3) – Chiricahua Apache Wars - Native American Short Documentary
The first of the three part documentary about the famous Apache leader Geronimo. Today remembered as a Native American icon and a legendary warrior, originally named Goyahkla, Geronimo was born in present day Arizona near todays Mexican...
Curated Video
The Life Of Geronimo (Part 2 of 3) – Chiricahua Apache Wars - Native American Short Documentary
The second of the three part documentary about the famous Apache leader Geronimo. Today remembered as a Native American icon and a legendary warrior, originally named Goyahkla, Geronimo was born in present day Arizona near todays Mexican...