YouTube is loaded with impressive Rube Goldberg machines - you know, those totally pointless contraptions that pull off simple tasks in the most complicated way possible. The latest creation from artist, engineer and inventor Bob Partington is of particular interest as it's billed as the world's slowest Rube Goldberg machine.

His chain reaction took a whopping six weeks, three days, seven hours and two minutes to complete from start to finish and involves several slow-moving objects including a turtle, molasses and even growing grass. Take a look and let us know what you think in the comments section below.

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