Automatically adjusting stairs - GIF

Automatically adjusting stairs.

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Previously:

Firefighter training stairs - photo
Foley artist sound effect stairs - photo
Hotel stairs wheelchair elevator - GIF
Sliding stairs covering garage - GIF

Still trying to understand the point of this contraption

Quote:

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Originally Posted by Frank S

Still trying to understand the point of this contraption

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Watch your friends land flat on their face after a beer or two.