by "Dr. Zoidberg - RIP Oppo" (thetomselleck)
Published 12/21/2017 at 11:35
by "Dr. Zoidberg - RIP Oppo" (thetomselleck)
Published 12/21/2017 at 11:35
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STARS: 1
Is there a scientific explanation as to why the ice that’s in the potential span of my windshield wipers is much more stubborn to melt/scraping than the rest of the windshield?
"e36Jeff now drives a ZHP" (e36jeff)
12/21/2017 at 11:37, STARS: 6
Just a WAG, but if your car is old enough, it might be from micro-scratches in the glass from years of wipers pushing abrasive material across them giving the ice something to grab onto. Non-wiped surfaces would not have been worn down in that manner and be somewhat smoother, causing the ice to slide off easier.
"LedRobster" (rschifer)
12/21/2017 at 11:40, STARS: 0
Possibly that area of the glass is cleaner so the ice is sticking to the glass, whereas on the perimeter it’s sticking to the dirt on the glass?
"ADabOfOppo; Gone Plaid (Instructables Can Be Confusable)" (adabofoppo)
12/21/2017 at 11:41, STARS: 2
Yes. Probably something to do with temperature differentials and specific heat densities and things like that. But mostly fuck you for not having a garage, that’s why. :p
(I wish to denote the heavy sarcasm in this post. I do not actually have anything against Dr. Z not having a garage. Nature certainly does though.)
"Dr. Zoidberg - RIP Oppo" (thetomselleck)
12/21/2017 at 11:45, STARS: 1
I have a garage, but it is small, and I use it to protect the good car:
"ADabOfOppo; Gone Plaid (Instructables Can Be Confusable)" (adabofoppo)
12/21/2017 at 11:47, STARS: 5
What car. All I see is a very good boy.
"HammerheadFistpunch" (hammerheadfistpunch)
12/21/2017 at 11:48, STARS: 1
I would guess its refreeze. i.e. the latent heat of the windshield there melts the snow before refreezing into harder icier chunks. The heat from the cabin will stick around in the middle of the glass longer than on the edges.
"C62030" (c62030)
12/21/2017 at 11:49, STARS: 0
Your car is low on ice-repellent fluid. The tank is behind the passenger seat if you need to fill it up.
"Ash78, voting early and often" (ash78)
12/21/2017 at 11:54, STARS: 2
The detrtitus outside the wipers doesn’t allow the ice crystals to form as strongly.
"The Opponaut formerly known as MattP123" (mattp123)
12/21/2017 at 11:55, STARS: 3
My guess... You know how you clean surfaces before applying paint or adhesives? Its probably like that. The area cleaned by the wipers is clean and thus the ice sticks to the glass. Where as the other area is dirty and so the ice is stuck to more dirt/oils than glass. Put a sticker on something clean and another on something dusty and see which one stays put.
"functionoverfashion" (functionoverfashion)
12/21/2017 at 12:12, STARS: 0
I think there’s something to how relatively dirty the rest of the windshield is compared to the area that’s regularly cleared by the wipers. Unless you regularly clean the whole windshield with something... I don’t know I’m just here for the popcorn.
"Recovering Gaijin" (toxrensem)
12/21/2017 at 12:20, STARS: 1
Very un-scientific guess: the swept area is cleaner affording a better bond for the ice. Unswept areas still have a layer of grime the ice sticks to instead of the glass. RainX washer-fluid helps aLOT in my case
"As Du Volant" (skuhnphoto)
12/21/2017 at 12:22, STARS: 4
I’d guess it’s because that part of the glass has a slightly rougher texture due to the action of the wipers, meaning it’s easier for the ice to hang onto it.
"TheTurbochargedSquirrel" (thatsquirrel)
12/21/2017 at 12:26, STARS: 0
Schmoo present on windshield lowers freezing point in areas were it is not wiped off by wipers.
"UnderSTeerEnthusiast - Triumph Fanboy" (smithtaylorm)
12/21/2017 at 13:03, STARS: 0
One option is that the windshield wipers get off the dirt/oils that may stick on the windshield in other spots. Spots covered in hydrophobic things such as natural environment oils will cause the water to not adhere as well, meaning the ice would come off easier in those spots
"Dr. Zoidberg - RIP Oppo" (thetomselleck)
12/21/2017 at 14:12, STARS: 0
No
"beardsbynelly - Rikerbeard" (beardsbynelly-Rikerbeard)
12/21/2017 at 15:58, STARS: 0
I think along the same lines. the microscratches would be the first place for water to stick to, so the ice is thickest there.