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Primitive Technology: Trebuchet

Adults Construction Creativity Education
I built a trebuchet, a type of catapult that uses a counter weight to store gravitational potential energy which is then used to fire a projectile via a sling.

Mushroom Carbonara | Jamie Oliver | ONE

Adults Family Film Food
Far from classic but a nice little spin on the carbonara with mushrooms and rosemary, this ONE pan wonder is definitely worth a go!

Is Civilization on the Brink of Collapse?

Adults Future Life World
At its height, the Roman Empire was home to about 30 % of the world’s population, and in many ways the pinnacle of human advancement.

How Different Species of Fireflies Blink

Adults Animals Education Nature
Did you know that not all species of fireflies blink the same?

Everything You Ever Wanted To Know About Birds

Adults Animals Education Life
This summer, we partnered with Nate Senner of the University of Massachusetts Amherst and Tebughna School in Beluga, Alaska to make this series of videos all about how, why, and where birds migrate.

Can the economy grow forever?

Adults Economy History World
Is infinite economic growth possible on a planet with finite resources? Explore how countries can balance efficiency with sustainability.

The 4 things it takes to be an expert

Adults Education Human Science
Which experts have real expertise?

The Nucleus

Adults Education Science World
Hank does his best to convince us that chemistry is not torture, but is instead the amazing and beautiful science of stuff.

Photosynthesis

Adults Life Nature Science
Hank explains the extremely complex series of reactions whereby plants feed themselves on sunlight, carbon dioxide and water, and also create some by products we're pretty fond of as well.

Finances After College | How to College | Crash Course

Adults Life Personal Finance Society
If you've taken out student loans, graduation can start a ticking clock in terms of when your first payments will come due.

Why the US Keeps Trying To Buy Greenland

Adults Human Life Psychology
Professional slackliner Faith Dickey attempts things that plenty of us wouldn't dare try. How about traversing a slackline barely 2 inches in width across a canyon, hundreds of feet in the air?

Retrospective Ageing

Adults History Human Life
Did People Used To Look Older?

Are Red Pandas Friendly? | Weird Animal Searches | BBC Earth

Adults Animals Life Nature
Can red pandas eat grapes? Do red pandas attack humans? Why do red pandas stand up? These are just some of the weird and wonderful animal searches our expert answers.

Stadium Dogs

Adults Family Film Food
Stadium Dogs 4 Ways In 15 Minutes Or Less // Presented by BuzzFeed & GEICO

Amalfi Lemon Cake | Jamie Oliver & Gennaro Contaldo

Adults Family Film Food
It's full blown Italian fun in the studio today as the one and only Gennaro Contaldo shows us his beautiful Amalfi lemon cake. Theres no doubt about it, this is as lemony and as delicious as it comes!

Vampire Life is Hard

Adults Animals Health Life
This video was made in partnership with Bill Gates. Blood-suckers may seem like they have it easy, but feeding on blood comes with a lot of challenges.

The 4 greatest threats to the survival of humanity

Adults Human Life World
Dig into the 4 biggest existential risks that threaten the survival of humanity, and explore how we can safeguard our future.

The Scientist Who Killed Millions and Saved Billions

Adults Education Life Science
Fritz Haber is the scientist who arguably most transformed the world. Part of this video is sponsored by Wren.

Why Fun Is the Secret to a Healthier Life | Catherine Price | TED

Adults Health Human Life
Have you had your daily dose of fun? It's not just enjoyable, it's also essential for your health and happiness, says science journalist Catherine Price.

Celebration and Lifelong Learning | How to College | Crash Course

Adults Education Human Life
The end of college isn't the end of your education, it's just the end of a chapter of your education.

Farm That’s Bigger Than 49 Countries

Adults Life Nature World
The Single Australian Farm That’s Bigger Than 49 Countries