Inner Hebrides to Faroe Islands

The Sea Eagles of the island of Canna were hunted to extinction, but now they have been brought back. We climb into one of their nests perched high on a steep cliff to find out what their chances of survival are. Neil Oliver visits Europe's biggest super-quarry to receive an explosive lesson in how the rock is mined. Armed with a simple ruler on a Scottish beach, Nick Crane learns how the challenge of measuring our coastline led to a new branch of maths that could help our mobile phones get smaller.

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S04E07 - Norway: Lillesand To Svalbard