"Don Pearce" wrote in message
...
On Tue, 26 Oct 2004 17:51:03 +0000 (UTC), Mike O'Sullivan
wrote:

Don Pearce wrote:
On Tue, 26 Oct 2004 10:24:18 +0300, "Iain M Churches"
wrote:


"Stewart Pinkerton" wrote in message
m...

Average playing time of an LP = 20 minutes

Rotational speed of an LP = 33.3 rpm

Hence, number of rotations = 666

Coincidence? :-)

Nice number crunching Stewart:-))
Few vinyl sides are 20mins, much closer to
25mins.

I just hastily added up the running time of my 1500 vinyl albums and the
average was 19.5 minutes


Just counted my 3,500+ (Swim says 4,000..???) and the average playing time
per side is 23.4683 minutes....