I didn’t discover this, so I can’t take credit. But here is the idea:
“Wikipedia trivia: if you take any article, click on the first link in the article text not in parentheses or italics, and then repeat, you will eventually end up at ‘Philosophy’.”
So, for example, if you search ‘Spark Plug’ and follow the bread crumb, you will end up at ‘Philosophy’. I did it for ‘smoke stack’ and it is way to long to paste, but I did end up at ‘Philosophy’ after making a pass by ‘languages’ and even ‘Latin language’.
But someone over at Gizmodo did it for ‘spark plug’ and this is their path: Spark Plug-> Cylinder head -> Internal combustion engine -> Engine -> Machine -> Energy -> Physics -> Natural science -> Science -> Knowledge -> Fact -> Information -> Sequence -> Mathematics -> Quantity -> Property -> Modern Philosophy -> Philosophy