Anybody notice something missing on Phelps during the aforementioned butterfly event? While side-by-side photos show Cavic wearing the infamous Speedo LZR suit, Phelps wore only the pants. Why would Phelps, in a race decided by the smallest amount possible, not wear the full suit? With universal agreement that the suit works (Nike even let its athletes wear Speedo), the intermittent usage is puzzling. Representatives from Speedo claim that the suit provides an equivalent advantage independent of stroke and that personal habit accounts for the usage (though faster events would be more dependent on drag). But the difference in outfit lets us imagine for a second (or hundredth of a second, as it were) that the result might have been different had Phelps been fully dressed.

While Phelps didn't wear the suit in each event, the very pool he swam in may have helped him break seven world records among his eight gold medals. The pool is three meters deep versus the traditional two, minimizing the size of waves. The pool is also wider than many used in competition and has a novel gutter system that provides additional relief for disruptive waves. Even the seemingly inert buoys that serve as lane dividers are designed specifically to direct water downward and not directly into the lane. If designer John Bilmon had his way, the times could've been even faster. A modification to the starting blocks (some sort of an added flap to push off), was not allowed by the governing body, though it will debut at next year's world championships. The original plan was also to include porous walls that would further dissipate the waves, but the Chinese apparently balked at the price. Perhaps the British have some more cash for London 2012?
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WELL DONE
As a fellow swimmer it is easy to explain many of the issues brought up with Michael Phelps in the above article.
1. Michael Phelps did not wear a full body suit because the suits can restrict breathing and movement, and in the end it is all up to the swimmer about how comfortable they are.
2. The reason that Michael Phelps outouched Milorad Cavic is that when Cavic was gliding to the wall, he slowed as he was not kicking anymore. Michael Phelps took the extra stroke and touched with less resistance above the water, and therefore his arms were able to move faster and compensate for a poorly timed finish.
3. Measuring the lane would not matter because the differences are so insignificant that the result would be the same.
4. As for the gutter system, it does not make a big difference because the middle lanes have the same amount of waves, and all of the water leaves the pool when the swimmers swim past anyway.
Please do not pretend to tell how sports work if you are not a participant in them, or a very avid fan.
I have to agree with Mr Schaeps regarding the writer's lack of expertise and background. Aside from the obvious goofs noticeable to all swimmers and swim-PHANS, it appears Mr Schaeps did not even WATCH the Games. Proof?
"when the start gun is fired"
"react to the gun"
"to jump the gun"
"The starter's pistol"
"each swimmer hears the gun"
THERE IS -NO- GUN.
The PopSci folks are invited to write to me or Mr Schaeps for fact-checking next time a swim story comes around. Perhaps the Feb 20, 2009 meeting between FINA, swimsuit manufacturers, and even swim COACHES, to discuss the numerous questions and conflicting claims of suit technology and the swimming rules applicable to them.
Or wait until 2012.