Are We Alone? • 2016 • episode "Part 2" • Genius by Stephen Hawking

22:36

They're used for everything from entertainment to medicine - and now for weapons straight out of science fiction. Have lasers become too hot to handle?

S2E7 • History 101 • 2022 • Science

58:49

In part two, Professor Al-Khalili looks at the 19th century chemists who struggled to impose an order on the apparently random world of the elements. From working out how many there were to discovering their unique relationships with each other, the early scientists' bid to decode the hidden order of the elements was driven by false starts and bitter disputes. But ultimately the quest would lead to one of chemistry's most beautiful intellectual creations - the periodic table.

S1E2 • Chemistry: A Volatile History • 2010 • Science

53:17

Without the chemistry of photosynthesis, ozone, and a molecule called Rubisco, none of us would be here. So how did we get so lucky? To find out, host David Pogue investigates the surprising molecules that allowed life on Earth to begin, and ultimately thrive. Along the way, he finds out what we’re all made of—literally.

S1E2 • Beyond the Elements • 2020 • Science

43:41

The promise of time travel has long been one of the world's favorite scientific "what-ifs?" Hawking explores all the possibilities, warping the very fabric of time and space as he goes.

S1E2 • Stephen Hawking's Universe • 1997 • Science

53:06

In the United States, some 10% of people who wish to have children struggle with infertility. It’s especially common in the African American community, and fertility preservation can be difficult for transgender individuals as well. But why is this? And what can be done about it? NOVA explores barriers to fertility, from the social to the biological, and the state of assisted reproductive technologies. Follow the journeys of people navigating challenges from structural inequalities and racism to falling sperm counts.

NOVA PBS • 2021 • Science

59:00

In the final part, Professor Al-Khalili uncovers tales of success and heartache in the story of chemists' battle to control and combine the elements, and build our modern world. He reveals the dramatic breakthroughs which harnessed their might to release almost unimaginable power, and he journeys to the centre of modern day alchemy, where scientists are attempting to command the extreme forces of nature and create brand new elements.

S1E3 • Chemistry: A Volatile History • 2010 • Science