Tag Archives: domino chain reaction

TWSB: Take Me Down Like I’m a Domino

More like TYSB (This Year’s Science Blog) since I haven’t posted one of these in forever.

Sorry. I’m a bad person.

Anyway, check out this vid:

In case you’re not the type to read the description below the video, a domino can knock over another domino that’s about 1.5 times the original domino’s size. The idea to try this came originally from scientist Lorne Whitehead in 1983.

In the video, they only use 13 dominoes. However, if they had kept making larger and larger ones, the 29th one in the tumble would have been about the size of the Empire State Building, the 62nd would be large enough to almost hit the moon (assuming, of course, that we could keep the earth’s gravity constant over all of these mega dominoes), and the 133rd would have the same length as the diameter of the Milky Way.

Reddit user Variance_on_Reddit (along with other nerdy Redditors) calculated that the time it would take these 133 dominoes to actually fall would be 11.67 quadrillion years due to friction (again, keeping “earth” conditions constant across all dominoes).

Pretty snazzy.

Reddit link (warning: Reddit)