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Article #446

Re: Interesting friction problem

#446
From: Clive.Dennison
Date: Thu, 29 Dec 1994 17:30
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In article <parkD1GGAI.7KA@netcom.com> park@netcom.com (Bill Park) writes:
>From: park@netcom.com (Bill Park)
>Subject: Re: Interesting friction problem
>Date: Tue, 27 Dec 1994 05:51:54 GMT

>In article <3co66u$l6d@newsbf01.news.aol.com> tivers@aol.com (Tivers) writes:

>> We are training racing thoroughbreds on high speed treadmills--fast
>> conveyor belts with rubber surfaces. ...
>> 
>> The belt gradually climbs to a temperature of 100F and stops getting
>> warmer at that point, but the shoes of the horse (steel, aluminum,
>> titanium, and plastic shoes have been tried, as well as bare feet)
>> continue to become hotter and hotter until, at 4 miles of 3:00 rate
>> work, we've seen temperatures as high as 240F. this heat buildup is
>> probably pathologic at 120F and up, since nails travel through the
>> shoes and into the sensitive laminae of the hoof. We are getting
>> numerous necroses of the feet of these horses, although a single
>> episode doesn't seem to bring on much in the way of trouble. Gallop 5
>> miles for a week, though, and we're down for a month with that horse.
>> 
>> Tom Ivers
>> Windy Ridge Farm
>> (206) 837-3700 PM (206) 835-9344 AM 837-2102 Fax or Tivers@aol

What happens with a moving horse?  Does the horse perhaps need an airflow to 
cool its hooves?  Would a fan help?
Sorry, more questions than answers - the answer would be interesting. 

Clivius
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From: DennisonC@biochem.unp.ac.za (Clive.Dennison)
Newsgroups: sci.materials,rec.equestrian,bionet.general,sci.bio,sci.engr.biomed,sci.bio.technology,sci.bio
Subject: Re: Interesting friction problem
Date: Thu, 29 Dec 1994 17:30:17 GMT
Organization: University of Natal , Pietermaritzburg, South Africa
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