7. Ad-related means, to us, that a video in some way promotes a brand. So in this case scientists used LEGOs to build an apparatus to help their research, it’s not necessarily a purposeful promotion of the toy brand, but the effect is the same. Check it out.

6.  The wall of death – it’s a classic trick of physics that became a popular circus attraction in the early days of automotive advancement. Today, what with the hipsters and all their days-of-yore aesthetic, the wall has made a comeback. Mazda capitalizes on the phenomenon by tossing their little Mazda 2.

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