Light • episode "1/2" Light and Dark

Category: Science
Download:

Professor Jim Al-Khalili tells the story of how we used light to reveal the cosmos.

Light and Dark • 2 episodes •

Light

Professor Jim Al-Khalili tells the story of how we used light to reveal the cosmos.

Science

Dark

Prof. Jim Al-Khalili investigates the 99 per cent of the cosmos that is hidden in the dark.

Science

You might also like

Ice Station Antarctica

Antarctica is the last great wilderness. It's the coldest, windiest, driest and most isolated place on Earth. And every winter, for over three months of the year, the sun never rises. But it's also home to the British Antarctic Survey's Halley Research Station. A veteran of living and working at Halley in the early eighties, BBC weatherman Peter Gibbs makes an emotional return to the place he once called home. A place that, during his time, was key to the discovery of the ozone hole. The journey starts with an arduous 12-day, 3000-mile voyage onboard the RRS Ernest Shackleton. Once on the ice shelf, Peter is delighted to finally arrive at the futuristic research station and marvels at the cutting edge science being done at Halley today. From vital discoveries about how our lives are vulnerable to the sun's activities, to studying interplanetary travel and the threat of man-made climate change. But Peter's journey is also something of a rescue mission. The research station's home is a floating ice shelf that constantly moves and cracks, and the ice shelf has developed a chasm that could cast Halley adrift on a massive iceberg.

Horizon • 2016 • Science

50 Lies That You Still Believe

From Viking helmets to goldfish only having 3 seconds of memory, to goldfish only having 3 seconds of memory, we count 50 common misconceptions you have about the world :)

2015 • Science

Can We Make Life?

"It's alive!" Since Dr. Frankenstein spoke those famous words, we've been alternately enthralled and terrified by the idea of creating life in the lab. Now, a revolution in genetic engineering and thrilling innovations in synthetic biology are bringing that dream—or nightmare, as the case may be—closer to reality. New tools allow researchers to use cells to create their own DNA and edit it into existing genomes with more ease and less cost than ever before. Along with renewed hopes for treating some genetic diseases, there's serious talk of using the newest technologies to bring long-extinct animals back from the dead – like the team hoping to resurrect the woolly mammoth. Science fiction is quickly becoming science fact. NOVA Wonders explores the benefits and the burden of risk surrounding the controversial new technology

5Nova Wonders • 2018 • Science

How does do science?

How do we learn properly so we can be right all the time? How can we know that we know, when we don't know what we don't know?

This Place • 2015 • Science

Life: The Race Against Time

How the passing of time on Earth affects life on a variety of levels, from the daily opening of a flower's petals to the evolution of the horse. A swift journey through the seasons demonstrates how caribou spend most of their time on the move, while the flying squirrel's body clock, attuned to the rhythms of the Earth, is revealed to be the most accurate in nature.

2/3Time MachineScience

Chasing Snowflakes

We have a relationship with few things in nature the way we do with snow: we hate it, we love it, and we think we understand it. But we barely know the contradictory and beautiful components of snow’s character. But that’s something scientists are changing. From the formation of single flakes to the howling 70 km/h winds of lake effect snow storms to the destructive power of avalanches, intrepid researchers are bringing snow science into the 21st Century.

S54E06The Nature of Things • 2014 • Science