How simple ideas lead to scientific discoveries • 2012

58:15

There is a strange and mysterious world that surrounds us, a world largely hidden from our senses. The quest to explain the true nature of reality is one of the great scientific detective stories.

Horizon • 2011 • Physics

21:51

Exploring the universe on a ship that can boldly go where no man has gone before isn't just a sci fi dream. Dr Michio Kaku reveals how we really could one day build a warp drive and set out on our own star trek.

S1E1 • Physics of the Impossible • 2009 • Physics

22:01

Hurtling back in time to visit the dinosaurs is not an impossible fantasy! Dr Michio Kaku draws up blueprints for a working time machine that will let us visit the past and travel back to the future.

S1E6 • Physics of the Impossible • 2009 • Physics

57:59

Hannah is going the other way by asking whether everything could, in fact, be smaller. But going smaller turns out not to be much safer... First, we shrink the Earth to half its size - it starts well with lower gravity enabling us to do incredible acrobatics, but things gradually turn nasty as everyone gets altitude sickness - even at sea level. Then we visit Professor Daniel Lathrop's incredible laboratory, where he has built a model Earth that allows us to investigate the other effects of shrinking the planet to half size. The results aren't good - with a weaker magnetic field we would lose our atmosphere and eventually become a barren, lifeless rock like Mars. In our next thought experiment, we shrink people to find out what life is like if you are just 5mm tall. We find out why small creatures have superpowers that seem to defy the laws of physics, meet Jyoti Amge, the world's smallest woman, and with the help of Dr Diana Van Heemst and thousands of baseball players reveal why short people have longer lives. Lastly, the Sun gets as small as a sun can be. We visit the fusion reactor at the Joint European Torus to find out why stars have to be a minimum size or fusion won't happen. And if our Sun were that small? Plants would turn from green to black, and Earth would probably resemble a giant, frozen eyeball. Which all goes to show that size really does matter.

S1E2 • Size Matters with Hannah Fry • 2018 • Physics

41:45

It appears we live in a universe filled with light. But scientists are now certain there is far more matter in the dark portions of our universe.

S5E10 • Through the Wormhole • Physics

22:27

Time flies - sometimes. Its passage can seem to speed up and slow down. Why do we experience time the way we do, and how do we take back some control?

S3E12 • Explained • 2021 • Physics