Tennis Ball Bounce Back
As of the 23rd May 2022 this website is archived and will receive no further updates.
understandinguncertainty.org was produced by the Winton programme for the public understanding of risk based in the Statistical Laboratory in the University of Cambridge. The aim was to help improve the way that uncertainty and risk are discussed in society, and show how probability and statistics can be both useful and entertaining.
Many of the animations were produced using Flash and will no longer work.
During the early eighties, whilst having a knock about on a tennis court, a friend and I witnessed (indeed, we're responsible for) a rare shot. We were both stood on our own baselines and without looking up we each launched a looping underarm serve to the other. The balls met mid-flight, about three foot directly above the net. They rebounded and began their return journeys along almost the exact same path. We both caught our balls without moving and stood slightly dazed, pondering the chances.
Glenn B
Date submitted:Sat, 14 Jan 2012 22:08:28 +0000Coincidence ID:4328
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