hey friend
can you tell me why walking shoe worn out? what are the reasons?
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hey friend
can you tell me why walking shoe worn out? what are the reasons?
Friction.
And, ermm ... friction.
How old are you xxx200?
He's either 8 or he's trolling.
Or someone whose primary language is not English? Let's not be so harsh. Looks to me like a curious person with a layman mind just asking the reasons why shoes wear out. (a simple question. but hey, there's got to be a reason if you don't know it)
Last edited by halorealm; July 23rd, 2012 at 04:20 AM. Reason: typo
Yeah, because nationality has nothing to do with education. Especially considering how many countries have a large uneducated population correlated to much religion/spiritualism. This user has shown a deep belief in some kind of religion or spiritual ideology as far as what I've read. We can relate both deep religiosity and a lack of formal education with a layman perspective on science. It could very well be an 8 year old. But as I've explained, nationality might be the issue instead of age.
yes my primary language is not english so what? i speak in english because you people cannot speak in my mother language which is hindi and which is spoken by over a billion people in india ( world's second largest population) . compared to this how many people can actually speak english?
i am proud that my mother language ( hindi) is spoken by world's second largest population. english will never be my mother language. i use it only to talk to somebody who can't speak hindi.
since you yourself declares in your signature that you are not an expert of anything and if you are wrong, then we should correct you, let me correct you. age has nothing to do with reasoning ability. we should not believe in something because an authority says so. rather we should examine the thing by asking question so much as necessary. we should not judge by seeing who says so rather what is being said. ok.
I heard a controversial claim that shoes have souls.
I know Kalster's been deflated though he doesn't show it.
***
Friction. But why? Most shoes are designed to maximize friction, for the walker's benefit. So in a way shoes are designed to wear out.
Well, you're way ahead of me.I have an idea what might be behind the question.
I don't get it, if you are not an imbecile and you speak English well, why are you asking this?
Oh ya I got a question! Why you wear shoes?
Oh wait, you don't understand why friction is responsible to the wearing out of shoes, it that so?
Wearing a hole in the sole is fairly straightforward. Little bits of material are removed with each step due to friction with the pavement. Stretching the uppers may be a more interesting question. I suppose it has to do with exceeding the yield strength of the material.
That's what I was suspecting, that English is not your first language. And there's nothing wrong with that. While others were calling you an 8-year-old, due to the incomplete grammar, I had taken the impression you had a non-English nationality. So if anything, I was defending you.
Fair enough. Again, this person has not mastered English and has also showed deep religiosity of some kind, in a manner I find uncharacteristic of an 8 year old. This forum has seen a couple other non-English persons who have shown to believe in elementary ideas like elements (forgive the pun), spirits, and layman inferences about basic physics, thus hinting that they have received little or no proper education in the sciences. From what xxx200 has said, I doubt he/she is an 8 year old, and it would only be disrespectful to keep calling him/her so.Originally Posted by KALSTER
If he has not mastered English, he should go to some language improvement forum, not this forum. Here we discuss physics, not silly childish questions.
As it happens, even something as seemingly simple as sliding friction is not all that simple. There is a science behind it called "tribology."
Materials Tribology Lab
My comment had nothing to do with the grammar or spelling or anything, it had everything to do with the apparent surprise that walking around in shoes all day might wear them out. Although now I see he may have been asking what the mechanism that causes things to wear out in general was. In which case I interpreted the question wrongly.
If he's asking how sliding friction works, he should have asked it straightforwardly.
It's like asking why the sky is blue, instead of directly targeting the scattering of light.
Sorry for the misunderstanding.
Really Wise Man? If you ever ask a question, I'll expect you to be aware of the mechanism behind the observation beforehand. Otherwise, sorry, no answer for you. When people ask questions based on intuitive observations, most of the time they are not aware of the physics mechanisms behind it.Originally Posted by Wise Man
I believe he is aware of the physical mechanism behind 'why shoes wear out', unless he's 8 years old.
Either way, that definitely explains he/she asked the question... And no, he/she doesn't have to be 8 years old to not know the physics behind shoes wearing out.
Even grown adults ask "Why is the sky blue?" - Usually, the person is aware of the general idea, in this case friction, but would like to know the real physics behind the term. This is because when we ask ourselves these simple questions, we find that the answers we look for are not so intuitive.
Also, as I said before, we can excuse this user due to his/her situation (possible lack of in-depth education and primitive perspective of science based off religious/spiritual ideologies). We have had users like this come to the forum before.
hey friend,
first time at this site... kind of appalled at how a simple question generates so much bad answers. i am a foot doctor and keen interest in shoes, walking shoe s especially
walking shoes can last longer than running shoes (which last 300-400 miles, generally 3 -4 mos)
the outer sole: can wear as was suggested by friction and surfaces that you walk on. uneven wear can be bad for your joints knees hips and back due to torque forces
the mid sole: of these shoes is mostly made of EVA (ethelyne vinyl acetate) this material fatigues upon exposure to oxygen, thus even new shoes can start to fatigue and provide less shock absorption, generally that is 6 months or 800 miles, usually the walker notices more tiredness, plantar arch pain, sometimes low back pain also
the uppers can last much longer maybe a year or two depending if leather, mesh or cloth. if they ar worn excessivley then you may have some poor mechanics, uneven leg length flat feet etc.
the heel counter is another key area of the walking shoe to check for uneven wear, cracks and fatigue, but this wears fast mostly with very flat feet.
in an urban environment the walking shoes (soles particularly) should be replaced in 6-9 months definitely 12 months assumming regular use
they can last longer in a rural of non concrete ashphalt surface.
tip: rotoate your shoes regularly and cosider having them resoled in 9-12 monthsd to get another year or so out of your investment!!
many happy miles
sincerely,
Dr Jac
Last edited by KALSTER; July 23rd, 2012 at 06:17 PM. Reason: Removed spam link
oh sky is blue because of the reflection of the water (ocean)!!
Lets get back to the topic please
Great, so we have established you are Indian and your first language is Hindi (my first language, Afrikaans, is spoken by only 0.3% of the world). How old are you then? Why do you think shoes wear down?
i am 28 years old. i try to find a possible solution to shoe problem.
I understand that in Haiti, shoes are a big issue. Most children don't own a decent pair, at least not in the city I saw documented. And for those that do, they're poor quality and as such wear out quickly.
xxx200, is there such a shoe problem where you are from?![]()
my next question is how to reduce friction of outer sole of the shoe?
Use a harder material. That would put you in danger of slipping.
Also:
http://phys.org/news/2012-07-lab-sole-id-people.html
A new lab is working to perfect special shoe insoles that can help monitor access to high-security areas, like nuclear power plants or special military bases. The concept is based on research that shows each person has unique feet, and ways of walking. Sensors in the bio-soles check the pressure of feet, monitor gait, and use a microcomputer to compare the patterns to a master file for that person. If the patterns match the bio-soles go to sleep. If they don't, a wireless alarm message can go out.
Last edited by pyoko; July 23rd, 2012 at 07:53 PM.
The soles of shoes are simply a trade-off between safety and comfort - you must have grip and stability - and strength, weight and durability. How long they'll last.my next question is how to reduce friction of outer sole of the shoe?
There's also shoe protection and maintenance. When I was a kid we had solid leather shoes and the tips of the heels and toes were shielded by small pieces of metal to cut down the wear. We also ensured that as soon as any serious wear showed up, we replaced either the metal tips or part/all of the heels or half/whole of the soles. And the other, near religious routine, maintenance was to ensure that shoes were thoroughly cleaned every day. It got rid of all those little bits of dust, grit or mould that might get into the stitching or other structural parts of the shoes, once a day, and helped them to last a bit longer.
I'm not so sure that India's roads and paths would have much more effect on shoes than the rough asphalt or dirt paths around here. The biggest issues for durability of shoes are ....
1) quality of each pair of shoes
2) cleaning and maintenance of each pair of shoes
3) not wearing the same pair of shoes day after day.
Giving shoes a chance to 'rest' and the materials to relax back to their designed shapes for a day or so is the best thing you can do for them. Having 3 pairs of shoes that you regularly rotate wearing will last you much, much longer than 3 times one pair worn every day.
The shoes wear faster if we walk lazily.
(If we land on our heel, the heel will wear faster.)
But if we walk barefooted, we don't land on our heel because it causes knee pain...
Perhaps it's because you make crappy shoes in India.if you use shoes from india and use it excessively, it will wear out within 3-4 months because of the world class situation of indian roads.
I am locking this thread as it is pointless and off topic. To xxx200, if you would like it reopened, send me a PM.
Wayne
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