Full Show Summary
Dirty Great Machinesis a documentary series which takes a look at some of the the largest land-based machines ever built.
Last Episode, 18 May 2012: Season 1, Episode 4: Episode 4In Canada, almost two miles underground in the world's deepest copper and zinc mine, a mighty drill chews through rock, digging deep holes which are then filled with explosives and detonated, leaving behind debris packed with valuable minerals. Meanwhile in Helsinki, Finland, cameras follow a mission to excavate a new metro tunnel to improve commuter services - but working seven metres beneath the bustling city calls for precision engineering and one false move could lead to disaster.
- Episode Guide
|Date Aired||Dirty Great Machines Episodes|
|27 April 2012||Season 1, Episode 1: Episode 1|
|04 May 2012||Season 1, Episode 2: Episode 2|
|11 May 2012||Season 1, Episode 3: Episode 3|
|18 May 2012||Season 1, Episode 4: Episode 4|
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