How fast a row of dominoes topples depends on friction
Computer simulations reveal the physics behind the blocks’ cascades
![I curved line of falling dominoes, toppling on each other.](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2022/06/061522_ec_dominoes_feat.jpg?fit=1030%2C580&ssl=1)
A line of dominoes standing on end collapses in a chain reaction after the first one is knocked over. Computer simulations reveal that friction plays an important role in determining how fast the toppling cascades.
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