mystery

May. 21st, 2011 11:16 pm
[personal profile] eub
The light truck in front of us had its spare tire mounted on its backside. The spare must never have been driven on, still had its sprue bristles. But wait a minute, it had them only for a 180-degree span on the bottom. None on the top.

Why?

Date: 2011-05-22 06:18 am (UTC)
From: [identity profile] eub.livejournal.com
The least implausible possibility I've got is that they just wanted to shave the tire that way, for fun.

Date: 2011-05-22 06:52 am (UTC)
From: [identity profile] randomdreams.livejournal.com
Is it possible outside exposure -- UV from the sun, snow/ice -- had caused the upper ones to lose their flexibility and break off?

Date: 2011-05-22 06:54 am (UTC)
From: [identity profile] randomdreams.livejournal.com
I make this suggestion because on my car, which because of where I live, always has the driver's side door facing south, has all the rubberized trim on the left side of the car cracked, broken, and falling off, while the trim on the right is still new-looking.

Date: 2011-05-22 07:04 am (UTC)
From: [identity profile] eub.livejournal.com
UV brittling is definitely in play, but the tire just had such a sharp trimline at each side (well, as best I could see from behind it in stop-and-go traffic). The sun exposure would grade more evenly there I figure.

Precipitation, that would bring gravity in to explain the sharp top/bottom effect. But sprue-stripping precipitation? Freeze-thaw something something maybe?

How about this, the sprues *are* brittle all over the tire where sun reaches, it's just that it hailed this one time and and knocked off all the ones on the top, and nothing has knocked off the ones on the bottom yet.

Date: 2011-05-22 08:27 am (UTC)
From: [identity profile] beaq.livejournal.com
Because they are easiest to see and reach, and are fun to pull off.

Date: 2011-05-22 05:10 pm (UTC)
From: [identity profile] beaq.livejournal.com
Or are easiest to casually rub one's hand over.

Date: 2011-05-22 07:31 pm (UTC)
From: [identity profile] cdinwood.livejournal.com
Yeah, this was my primary thought. I have been known to pull them off.

Date: 2011-05-23 08:53 am (UTC)
From: [identity profile] eub.livejournal.com
If you really want to mess with my mind you could pull them off in a Fibonacci pattern.

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Eli

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