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Light Fantastic (BBC) The Stuff of Light Part 3

Episode three charts the discovery of the true nature of light and its impact on the modern world. All of today's technologies - electricity, mobile communications and our ability to illuminate the world 24 hours a day - stem from unravelling the mystery of light.

The Cell (BBC) The Spark of Life. Part Three

The final part reveals how our knowledge of cells has brought us to the brink of one of the most important moments in history. Scientists are close to repeating what has happened only once in four billion years - the creation of a new life form.

The Cell (BBC) The Chemistry of Life. Part Two

This episode explores how scientists delved ever deeper into the world of the cell, seeking to reveal the magic ingredient that can spark a bundle of chemicals into life. Their discoveries have brought us to the brink of being able to create life for ourselves.

The Cell (BBC) The Hidden Kingdom. Part One

The first part explores how centuries of scientific and religious dogma were overturned by the earliest discoveries of the existence of cells, and how scientists came to realise that there was, literally, more to life than meets the eye.

Light Fantastic (BBC) Light, Universe & Everything Part 4

In the final programme Simon Schaffer finds that as more people were able to manipulate light, the more puzzling and tricky it became. This led to investigations into the strange relationship between light, the eye and the mind, and the development of new technology such as photography and cinema.