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Ron Larham

Publications and source records attributed to Ron Larham.

2 recordsLinked to original sources

Demonic dominoes

In response to a challenge in a recent paper to measure the propagation speed of the wave of collapse of an array of dominoes (the Domino Effect), a novel method of measuring the speed of such waves has been developed using sound recordings of the collapse and DEMON (Detection of Modulation on Noise) analysis to extract the frequency of domino impacts and hence the speed of propagation of the domino wave. This paper presents this method and a discussion of the other published measurements and models and some comments on the precess of mathematical modelling.

physics.pop-ph

Validation of a Model of the Domino Effect?

A recent paper proposing a model of the limiting speed of the domino effect is discussed with reference to its need and the need of models in general for validation against experimental data. It is shown that the proposed model diverges significantly from experimentally derived speed estimates over a significant range of domino spacing using data from the existing literature and this author's own measurements, hence if its use had had economic importance its use outside its range of validity could have led to loses of one sort or another to its users.

math.HO