Artist Theo Jansen demonstrates the amazingly lifelike kinetic sculptures he builds from plastic tubes and lemonade bottles. His creatures are designed to move -- and even survive -- on their own.

Salmon make a hardcore journey upstream to their spawning grounds to reproduce, and it almost always ends with death. But some live to reproduce again, and more than once!

We've known for millennia that lead pipes could make us sick, so why are we still drinking from them?

As engineer, sometimes lives will be in your hands, so this week we’re exploring safety and its impact on engineering. We’ll discuss the difference between occupational safety and public safety and how to analyze and review a process for...

The Radium Girls were the first people who worked, for years, with one of the world's most radioactive substances -- and suffered the consequences.

Power, manipulation, and truth are major themes in George Orwell's novel "1984." In this video, we delve into the character of Big Brother as a symbol of control and surveillance, the concept of doublethink, and the manipulation of truth...

In 1640 Charles I's personal rule, a period in which he attempted to rule without Parliament, came to an end. In this petition, twelve peers set out the case for calling Parliament. They set out the grievances of the kingdom, present...

Howcast - Learn basic archery rules from the pros at Queens Archery in this Howcast video.

The video explains the Occupational Safety and Health Act (OSHA), a federal law that aims to protect employees who work for employers with 20 or more full-time employees. It discusses the requirements for employers to maintain a safe and...

Uncover the story of astronaut John Young's infamous corned beef sandwich in space during the Gemini 3 mission.<br/>

When a volcano in Iceland erupted in 2010, hundreds of planes were grounded by volcanic ash. Why? Past experience had shown just how dangerous flying in an ash cloud can be. Earth Science - Geology - Learning Points. In March 2010, the...

Charting the waters around the Scottish island of Orkney was a pivotal moment in maritime mapping. But a reliance on outdated maps places modern ships in danger. Human Geography - Orientation And Settlements - Learning Points. Before...

From the western gorilla to the blue whale, thousands of animal species are under various levels of threat. What can we do to protect them or is it already too late? Biology - Adaptation And Evolution - Learning Points. An astounding...

Today, 90% of brain surgery patients survive, with thanks to the work of Cushing, the world's first brain surgeon. A look at his techniques and how they have influenced modern brain surgery. Biology - Being Human - Learning Points. Dr...

What is it? ... These are ear protectors!
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A Twig Tidbit Film - Jigsaw. An image is slowly revealed as pieces of the jigsaw are removed. The children...

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A Twig Tidbit Film - W<br/>hat’s that noise? The children have to identify an object from its
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Four different materials are shown, but which can absorb the most sound?
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A Twig Tidbit Film - Odd one out. The children have to work out which of four...

This video encourages viewers to take action against climate change, from daily habits like biking and recycling to broader efforts like writing to representatives or studying environmental sciences. Discover how small changes can...

Uncover the story of astronaut John Young's infamous corned beef sandwich in space during the Gemini 3 mission.

Dr. Forrester explains how to be prepared to deal with emergency situations.

What is the deepest dive a human can survive? It’s far deeper than you could even imagine! Join us on this journey into the depths of human survival.

The video “Digital Citizenship” discusses how to be safe, responsible, and respectful when using technology.

Sobek: The Egyptian Crocodile God Explained

In some cities, it's more dangerous to breathe than smoke cigarettes. Find out more breathtaking facts and figures on the dangers of global air pollution.