RIPPEN soundboards -- its gotten longer

[Richard Moody]

> approximately 1100 feet per second of sound in air divided
> by 27 vibrations per second will give you the approximate
> wave length.
>
> Newton

So how come they say the string length is equal to one half the wave length?
----ric raisinthepitchby30cps

ps I once thought I knew the answer but then forgot.  It is one of those
kind of problems.