[DVBC] Nice ride, Drew

[Doug Bower]

Bob,

It seams as if you are getting use to that broadband connection already.
You never use to send pictures.  Keep up the good work.

Hysteresis 
A phenomenon wherein two (or more) physical quantities bear a
relationship which depends on prior history. More specifically, the
response Y takes on different values for an increasing input X than for
a decreasing X.

If one cycles X over an appropriate range, the plot of Y versus X gives
a closed curve which is referred to as the hysteresis loop. The response
Y appears to be lagging the input X.

Hysteresis occurs in many fields of science. Perhaps the primary example
is of magnetic materials where the input variable H (magnetic field) and
response variable B (magnetic induction) are traditionally chosen. For
such a choice of conjugate variables, the area of the hysteresis loop
takes on a special significance, namely the conversion of energy per
unit volume to heat per cycle. For mechanical hysteresis, it is
customary to take the variables stress and strain, where the energy
density loss per cycle is related to the internal friction. Thermal
hysteresis is characteristic of many systems, particularly those
involving phase changes, but here the hysteresis loops are not usually
related to energy loss. See also Ferroelectrics; Stress and strain.

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-----Original Message-----
From: dvbc-list-bounces at list.dvbc.org
[mailto:dvbc-list-bounces at list.dvbc.org] On Behalf Of Bob LaDrew
Sent: Saturday, November 25, 2006 5:09 PM
To: dvbc-list at dvbc.org
Subject: [DVBC] Nice ride, Drew

    Drew always pays attention to the little details. Like plopping a
cooler 
full of goodies halfway out on the course (no more since the cooler got 
stolen), driving or biking the route beforehand, or handing out cue
sheets. 
Today was no exception and about 19 of us had a terrific ride on a
beautiful 
November day. We were chilly for the first few miles but the adage of
Bob 
Leon ("If you're not cold after the first mile you're probably 
overdressed.") proved true again in that definitely none of us were 
overdressed.
    Not realizing the trophy has already been engraved with the winner's

name, Nancy made a last-ditch effort for the Crash-and-Burn award by
hitting 
the pavement with a dozen miles to go. If her maniacal pedaling
thereafter 
was any indication, she is fine.
    When we left the parking lot in the afternoon Ed Sobolewski seemed
well 
on his way to his 29th century of 2007 and Mike Keating was still
circling 
the parking lot so we can only imagine how many miles he totaled.
    Doug had three flats before he figured out the cause. He also taught
us 
a new word, which I have already forgotten. Was it "historesis"?
    Photo below: Dreamer doing what dreamers do best.
    --Bob LaDrew