Sealgairean Spòrsail/History Hunters

Travel back to the age of exploration with Calum Macdonald, Kerry Anne Macleod and the History Hunters, an age when European explorers set sail for Asia in search of faster routes to bring back exotic wares and foods that would make them rich. They invented gadgets like telescopes, developed sailing skills to measure speed and distance, stumbled across places and people they didn't know existed and mapped the world.

The early explorers worked out where they were in the world based on how fast they were travelling. In today's first mission, the History Hunters measure how fast a boat is moving using a rope, a bucket and some knots. The second mission involves making a homemade telescope to track down friends who are hiding in the garden.

Back in the studio, Calum and Kerry Anne examine how maps were made. They investigate tastes, sights and smells that went global thanks to explorers, and find out why lemons could be a lifesaving food for sailors.