Time and Distance • 2013 • episode "1/3" • Precision: The Measure of All Things

59:06

In the first episode, Helen seeks out the colours that turned planet Earth multicoloured. To investigate the essence of sunlight Helen travels to California to visit the largest solar telescope in the world. She discovers how the most vivid blue is formed from sulfur atoms deep within the Earth's crust and why the presence of red ochre is a key sign of life. In gold, she discovers why this most precious of metals shouldn't even exist on the surface of the planet and in white, Helen travels to one of the hottest places on Earth to explore the role salt and water played in shaping planet Earth.

1/3 • Colour: The Spectrum of Science • 2015 • Physics

5:27

Just how small are atoms? And what's inside them? The answers turn out to be astounding, even for those who think they know. This fast-paced animation uses spectacular metaphors (imagine a blueberry the size of a football stadium!) to give a visceral sense of the building blocks that make our world.

Physics

4:57

Atoms are very weird. Wrapping your head around exactly how weird, is close to impossible – how can you describe something that is SO removed from humans experience? But then again, they kind of make up everything, so let us try anyways.

In a Nutshell • 2015 • Physics

82:20

In two mind-blowing hours, Hawking reveals the wonders of the cosmos to a new generation.

3/3 • Stephen Hawking's Universe • 1997 • Physics

58:39

Engineer Jem Stansfield looks back through the Horizon archives to find out how scientists have come to understand and manipulate the materials that built the modern world. Whether it's uncovering new materials or finding fresh uses for those we've known about for centuries, each breakthrough offers a tantalising glimpse of the holy grail of materials science - a substance that's cheap to produce and has the potential to change our world. Jem explores how a series of extraordinary advances have done just that - from superconductors to the silicon revolution.

Horizon • 2012 • Physics

58:49

How we came to measure and harness the power of heat, light and electricity.

3/3 • Precision: The Measure of All Things • 2013 • Physics