On 2008 Jan 15 , at 1:31 AM, Bill Potts wrote:
That's a helluva fast pulse. 56 Hz is 56 beats per second, not per
minute.
Ooooh! You're so right.
Sorry about that. I was trying to be cute when I tacked that note onto
my previous message, hurriedly, at the last moment, and without
sufficient thought.
I had never before thought about heart rate in SI but in a flash of
misguided inspiration, I recalled my blood pressure machine giving me
"56" for my pulse rate. Since our discussion had been about measuring
frequencies in hertz, I thought about adding a note about my pulse
rate in hertz as well. I then quickly jumped to the incorrect
conclusion that the "56" would be 56 Hz. Of course, 56 Hz is 56 beats
per SECOND and my BP machine was really giving me the rate in beats
per MINUTE. (The 56 beats per minute would translate to 0.93 beats per
second or 0.93 Hz or 93 mHz, not 56 Hz.)
It just goes to show, that one cannot try to be too "cute" without
appropriate care for correctness.
Thanks for catching my mistake. It's one I won't make again.
Bill Hooper
heart beat: 0.93 Hz
Fernandina Beach, Florida, USA
==========================
SImplification Begins With SI.
==========================
