The Unseen - A History of the Invisible Episodes Available now
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Becoming Invisible
5/5 Writer Philip Ball meets the physicists who are making real life invisibility cloaks.
![](https://ichef.bbci.co.uk/images/ic/320x180/p03wx85r.jpg)
The Invisibly Small
4/5 Philip Ball examines invention of the microscope and of the world of the invisibly small.
![](https://ichef.bbci.co.uk/images/ic/320x180/p03wx85r.jpg)
The Spirit World
3/5 Philip Ball reveals that technology can act as a catalyst for belief in spirits or ghosts.
![](https://ichef.bbci.co.uk/images/ic/320x180/p03wx85r.jpg)
Conjuring the Invisible
2/5 Philip Ball examines the curious relationship between science, stage magic and cinema.
![](https://ichef.bbci.co.uk/images/ic/320x180/p03wx85r.jpg)
Invisible Forces
1/5 Philip Ball examines the occult influences on Isaac Newton's work on invisible forces.