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Disputed goals are a major headache in professional football. This new
white paper by Dr Ken Bray, the Bath-based theoretical physicist, looks at
one particular type where a ball, bouncing on the ground after its impact
with the crossbar, spins back into play. He has recently conducted a series
of experiments, using a ball-launching machine and a high-speed digital
camera, to show how this sort of "reverse rebound" can happen. The work
involved some pretty intensive computations and it was Mathcad's robust
handling of simultaneous equations that, in Dr Bray's words, made "very
short work of the process". We regret that we are unable to mail this item to addresses outside the United Kingdom or Irish Republic. Please contact your local office for further information or choose the download or email options. |
