How Fast Is Domino Chain?

A domino chain falls at about 1.5 m/s — 5 km/h. Each domino can topple another up to 1.5× its size; remarkably, a chain of just 13 dominoes starting from a small one could theoretically fell one the size of the Eiffel Tower.

The world record domino chain stands at over 600,000 — toppled in a coordinated event that takes 6 weeks to set up and 30 minutes to fall.

• Same as walking pace
• 13 dominoes, each 1.5× bigger, could fell the Eiffel Tower