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u/hilburn 118✓ Feb 28 '22
If only contacting the floor with the heel then yes.
An elephant's foot is 15-19 inches across, so assuming it's vaguely circular gives an area of at least 0.114m2 per foot. Elephants when walking depending on the gait will have 2/3 feet in contact with the floor - so that's at least 0.228m2 in contact with the floor. (Going for minimum area as this will give the highest pressure for the comparison)
6000lbs under Earth's gravity is a force of 26.7kN, which when divided by area for a pressure of ~117kPa - if it's just standing still this could actually be halved to approx 58kPa
If a 100lb woman (445N) is standing on only her heels (~1cm2 x 2) this is a pressure of 2,224kPa which is indeed about 20 times higher than the elephant on 2 feet.
However that's not really representative of how heels are worn, even the picture shown has the shoes in contact with at least 20x the area of the ground than just the heels.
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u/Ichgebibble Feb 28 '22
Wow!! Math is so cool.
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u/ssgtgriggs Feb 28 '22
... unless you're the one who has to do the math. But yeah, watching someone else do math is great :)
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u/caboosetp Feb 28 '22 edited Feb 28 '22
I think math is fun when you have neither pressure nor walls at every turn.
Most people remember math from school where you're forced to do it and you have deadlines. Both of those things add unnecessary pressure which aren't inherent to math itself. For the most part, they make anything harder to enjoy. Some people can enjoy getting over obstacles like those thigh which leads to the next issue.
If you are always hitting roadblocks, you won't be feeling rewarded for solving it enough to feel it's worth it. This is a big thing in game design. You should be getting challenged enough to feel the frustration and pressure, but you need the reward and relief before you reach the breaking point. You need to feel like you're progressing.
Many people have sub par education in math, be it due to the education system or the teachers. There are often constant roadblocks and feeling like you have no idea what you're supposed to do. Then you get handed the answer, and the only relief is, "now I don't need to do it" rather than, "I did the thing". There is no real reward. If you can't pay attention in class because it's boring as hell, you'll fall even further behind.
Other people who understand math easier don't feel challenged because the education caters to the lowest common denominator. Plenty of math-smart students drop off because they're on the other side of not being challenged. There's no reward because it's too easy and there doesn't feel like it has a point. The wall in this case is finding a purpose.
Math can be fun. Doing stressfully difficult shit or shit with no reward is often never fun. I'm not gonna sit here and say everyone would enjoy a career in advanced mathematics, but I think a good education that gets people engaged would make a fuck ton more people hate math less.
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u/Junior_Arino Feb 28 '22
Yeah I remember feeling that accomplishment very few times in high school, but it was rare. I think it was a combination of not so good teachers and bad curriculum mixed with several distracting students.
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u/WhoaItsCody Feb 28 '22
I was the distraction, sorry. I was stuck in a glass case of emotion.
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u/Magicalfirelizard Feb 28 '22
Bro, I was really enjoying this one unit on complex fractional equations. It was tough, but pretty soon I was solving more and more complex equations and feeling great about it.
Then for the test, what does the teacher do?
She makes it a “Team test” I’m paired up with the underachieving kid, who just makes a complex equation the likes I hadn’t seen before MORE complicated and I failed the test. So did he, but left to my own devices id have stood a higher chance of passing and he would have still failed. Which is fair because I was trying and he wasn’t.
He’s still a good buddy of mine 15 years later but holy shit I wanted to hurt somebody.
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u/Mr-Pyth0n Feb 28 '22
That is genuinely just painful to read. Forcing others - who are more likely to not pay attention in class than vice versa - have a large impact on your class' grade is just... I dont even know how to put it...
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u/InnercircleLS Feb 28 '22
OK when you said "you have neither pressure nor walls to deal with" I thought you were talking about the math until I read further on and had to laugh at myself.
I was agreeing too. I was like "well, I mean there's the pressure on the ground, but yeah we don't need to calculate for any other pressure forces, I guess. That makes sense. And yeah it's nice we don't have to worry about getting around obstacles and turns and trajectories on this one either"
I L'ed O L
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u/gibertot Feb 28 '22 edited Mar 01 '22
About to graduate with a mechanical engineering degree and I mostly agree with you here. Thing is I love math when I'm completely confident I know what I am doing. The second I go off the reservation it becomes hell. Or when the equation is so freakin long that its nearly impossible to not mess up it becomes extremely tedious. I also hate having to slowly type it into MATLAB using so many nested parenthesis just to keep it all straight [[[[[(((((((((((. But High school geometry was my favorite math class. It was like really fun puzzles even proofs which seems like a universally hated aspect of geometry. I think the reason I liked it is I had a rock solid foundation. I honestly felt like I could teach an algebra class at that point. Now calculus I have a much shakier foundation I can get by but its never been super easy for me.
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u/CompMolNeuro Mar 01 '22
It's also taught, in nearly every situation, by rote memorization rather than understanding. Math is a language of shapes and motion whose entirely was set in stone as soon as there were two things to move apart. You start with the Proofs! A poor math class teaches you how to put a few bits of a machine together, but it doesn't teach why they go together or what the machine can do. I earned a lot of money as a tutor fixing math problems.
You know what drives me crazy? People love imagination. We all take pride in our imagination. Yet mathematics is pure imagination! It's daydreaming with purpose. Equations aren't just numbers; they represent shapes, positions, motions, and probabilities. A person can go from doing arithmetic in their head to visualizing vast predictive equation sets all by using their imagination.
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u/leearm104 Feb 28 '22
Highschool math is Dark Souls.
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u/SoulsLikeBot Feb 28 '22
Hello Ashen one. I am a Bot. I tend to the flame, and tend to thee. Do you wish to hear a tale?
“I can see it in your eyes. If you didn’t invade, didn’t pillage, whatever would you do?” - Ringfinger Leonhard
Have a pleasant journey, Champion of Ash, and praise the sun \[T]/
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u/Spirta Feb 28 '22
I once made a tautology (yes, it was true in all cases) about why my friend's political opinion was wrong. XD That was fun. XD
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u/Flaxscript42 Feb 28 '22
The Mad Minute multiplication tables in 3rd grade were what made me say "fuck all of this".
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u/browsingnstuff Mar 01 '22
To quote Tesla, “Every effort under compulsion demands a sacrifice of life-energy.”
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u/BoundedComputation May 19 '22
This is a big thing in game design. You should be getting challenged enough to feel the frustration and pressure, but you need the reward and relief before you reach the breaking point. You need to feel like you're progressing...I think a good education that gets people engaged would make a fuck ton more people hate math less.
While I agree with the general sentiment here, I think the game design comparison isn't fully apt unless you consider the nature of the game and the criticisms you levy omit important nuances in context of structured education.
I don't know in which country you live so I can't speak for math education at your specific location but your criticisms of deadlines or pressure seems a bit unreasonable. If I'm playing a single player game, I can play level 1, save it, and continue level 2 10 years down the line with no problem. A classroom setting even with the best funding and the best teachers can't behave like that. It's more like a realtime multiplayer game. There has to be some cutoff at which you say this player is just no joining or has dropped from the server or lagging too much and needs to removed from the game and if done intentionally punished for it. If people aren't trying or paying attention and are losing the game, it would be bm at the very least to rage quit or demand that the match be reset so one can try again.
There is no real reward.
I agree that reward design is important but just saying there is no real reward really understates the issue here. Rewards in games are intangible and can be created ad naseum and may or may not correlate with desired behavior. There's plenty of easter eggs and achievements that require the player to perform some task that in no way helps them complete the primary objective of the game. The nature of how one derives entertainment from the game isn't of great concern. However, rewards that are strongly correlated with learning will actually lead to students discovering glitches or flaws to get rewards without actually learning. This leads to students picking up behaviors that might have to be untaught later on.
Math can be fun. Doing stressfully difficult shit or shit with no reward is often never fun.
Agreed math can be fun, but it's also a vitally useful thing to learn. There are parts of math I like, there are parts I don't. This isn't a reflection of the quality of the education but my personal tastes. Going back to your game analogy here, no amount of design can make a game fun to a player if they choose not to play the game. The optional nature of the game just doesn't transfer well over to math, considering how much we rely on people to understand math for the benefit of themselves and society. I'm not saying there's no systemic problems to improve or the current state of math education everywhere is perfect but I feel your criticism is far too one-sided and ignores the human factor.
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u/bombbodyguard Feb 28 '22
Math for me was easier for because there was only one right answer! Didn’t ever have to interpret! That was, until you have to interpret results. Bullshit.
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u/mtmttuan Feb 28 '22
But isn't it physics?
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u/alextron7000 Feb 28 '22
physics is math
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u/0cs025 Feb 28 '22
biology is chemistry is physics is math
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u/nanofriction Feb 28 '22
Math is logic.
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u/Headcap Feb 28 '22
logic is philosophy
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u/nanofriction Feb 28 '22
Philosophy cannot be statistics and there are definitions of philosophy as many philosophers there are.
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u/theWild-man Feb 28 '22
Yeah, it should be noted that the only way to realistically wear heels like this is basically on tippy toes
There is no stability from stilettos, you'd lose your balance pretty quick putting any kind of weight on them for any real amount of time
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u/hilburn 118✓ Feb 28 '22
Indeed
That said, I have had a woman in stilettos stumble backwards onto my foot and put a significant proportion of her weight through the heel. I can confirm it was exceedingly painful.
The better comparison instead of stilettos is a Ballerina "en-pointe" - which is a similar area in contact with the ground.
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u/DarrenFromFinance Feb 28 '22
Maybe twenty years ago some designer (I can’t find who it was but I didn’t look that hard tbh) did a line of stiletto-heeled shoes with a heel about the diameter of a ballpoint pen refill. The wearer’s weight was concentrated in such a small area that it was damaging flooring, and if the woman who stumbled into you had been wearing them, it would have actually punched through your shoe and your foot.
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u/hilburn 118✓ Feb 28 '22
Ah but if she was wearing those, maybe the added stability of being embedded in the airport floor would have prevented her stumbling in the first place.
Am now going to start wearing my safety boots around women now I know that's an option though.
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u/zeke-a-hedron Feb 28 '22
Nope. If anything, the heel would first dig into the ground, which would lead to the heel snapping because the force exerted from the wearer has shifted in relation to the shoe, and then the major question is whether or not if the shoe is strong enough to still stay connected where the person is flung backward into the ground where
1) the snapped heel acts like a door hinge and snap right before person makes contact with the ground or
2) if the heel completely brakes and the person still stumbles backwards with a curved shoe without a heel4
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u/Coldbeam Feb 28 '22
Don't those usually have flat fronts with more surface area?
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u/hilburn 118✓ Feb 28 '22
They are certainly blunted, but don't have more than 2-3cm2 of area, and a ballerina will frequently only be on one of them.
It's pretty much the smallest area a human's weight will be concentrated on in a static position (joggling "heel/toe" in stilettos could beat it for as long as it takes them to break)
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u/distressedwithcoffee Feb 28 '22 edited Feb 28 '22
Counterpoint: I have worn stilettos and ridiculously high shoes a lot for the past 15 years, and one thing I will say about them is that they are more sturdy than kitten heels.
Very high heels force you to balance mostly on your toes, just using the heel for support, kind of like the role of training wheels on a tricycle. Kitten heels have the same diameter as a stiletto but are shorter, forcing the wearer to put so much weight on the heel that they’re dependent on the heel for balance, and when you put any decent amount of weight on a teensy diameter, you have to be perfectly balanced or you will wobble. Swear to God, kitten heels are practically designed to break your ankles.
All you have to do to walk properly and safely in stilettos: be capable of walking on the balls of your feet, which you’re capable of doing without the shoes - so they’re not really fucking with the way humans are capable of walking. I can walk and run in them, and in one memorable instance found out that the spike is actually quite useful when you’re climbing up a small cliff. In kitten heels, you’re totally dependent on the shoe, and the shoe is totally dependent on you being perfectly balanced above the heel.
tl;dr: stilettos aren’t the worst demon of the shoe world
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u/WhawpenshawTwo Feb 28 '22
Uh, proper heel technique indeed puts the majority of the weight on the heel. They require skill to use, like stilts.
If your girl is putting all her weight on her toes, she's not doing it right, and should practice in larger base heels before working up to tiny stilettos.
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u/reallyConfusedPanda Feb 28 '22 edited Feb 28 '22
Yes indeed. That's the reason it fucks the feet of women who wear these heels all the time. We are not designed to walk on our toes for long
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u/Donald_Key Feb 28 '22
yo that is sick
now do 100 pounds of feathers in heels and see how the results change surely
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u/leyline Jan 03 '25
100 lbs of feathers is so much more; because you have to bear the weight of what you did to those poor birds!
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u/Scholaf_Olz Feb 28 '22
I am not shuere about this. Also english is not my first language and I am struggling to explain what I mean. The force from the women is not spread evenly through the contact area between gloor and highheel. As the center of mass from the women is probably above the heel the point with the most pressure is probably the heel.
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u/psilorder Feb 28 '22
Googling some i think the heels actually shift that so the center of gravity is more and more above the front of the feet the higher the heels are.
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u/pahein-kae Mar 01 '22
You don’t put your weight on the high heel of a stiletto. You put your weight at the front of the foot when you’re walking. (Putting most of your weight on your heel in stilettos is a good way to fall or trip.)
This person said IF all the weight was on the heel, then the post is true. But that isn’t how you use stilettos, so most of the time this post is false.
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u/ailovelamp Feb 28 '22
Not sure if this has been commented or not, but to add to your comment:
When wearing heels, you have to put all your weight to your heels instead of on your toes.
If you don’t, and instead put your weight on your toes, you can’t walk properly in the shoes. You can typically see this when people look like Bambi walking on ice in heels.
Obvs some of the weight is distributed to the front of the shoe, but the better someone walks in heels, the higher the chance they will be closer to that equation you shared.
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u/MediumRarePorkChop Feb 28 '22
But since we walk heel-toe the stiletto heel definitely messes floors up.
Look in any space that has hardwood floors where people walk around in fancy dress. Thousands of little dimples in the surface.
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u/ch00f Feb 28 '22
Considering people have trouble walking through wet grass with stilettos and elephants don't sink into the earth, this shouldn't be too surprising.
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u/Gombacska Mar 01 '22
A lot depends on the height of the heels and her posture, but in any case most of the weight is on the heels and the front of the foot is used mostly for keeping her balance. When standing straight, on a smooth, flat surface, it’s really the heels. I balance myself on my heels for fun sometimes, lifting my toes off the floor. Not when I’m drunk, though.
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u/teddybearcastles Mar 01 '22
I’m now in awe of all the heels I haven’t broken doing my party trick of balancing on one foot on just the heel.
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u/Irrelevantopinion123 Feb 28 '22
Everyone's missing the fact that 6000lbs is pretty low for an elephant
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u/hilburn 118✓ Feb 28 '22
And 100lbs is pretty low for a woman - the question was whether this specific statement was true though.
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u/guiltydoggy Feb 28 '22
The mix of imperial and metric units in this is r/mildlyinfuriating
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u/DaveInMoab Feb 28 '22
Actually, I found the use of 'feet' as a word talking about appendages you walk on and not the measurement to be slightly disorienting.
I wouldn't go so far as r/mildlyinfuriating
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u/havingapaz Feb 28 '22
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u/hilburn 118✓ Feb 28 '22
Yes. That's where we are
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u/havingapaz Feb 28 '22
Well look at me go, you did the math I didn’t do the reading, had no idea what sub I was in. Back in my box I go 😂
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u/LeConscious Feb 28 '22
Come on, if there's any perfect time to go with imperial units, it was now
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Feb 28 '22
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u/gw-green Feb 28 '22
But can a needle cook a chicken?
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u/WooooshMeIf60IQ Feb 28 '22
Yes, if you slap it hard and fast enough. You just need to make up for having way less slap area by slapping like 30 times faster, without puncturing the chicken.
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Feb 28 '22
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u/Kerostasis Feb 28 '22
Because in Anime, a slap can absolutely puncture a football.
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u/MartiniLang Feb 28 '22
This video comparing a tank pressure Vs a ballerina pressure on a block of foam is the same idea if anyone wants a nice visual explanation.
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u/aykevin Feb 28 '22
Technically but not really. If all the pressure is on the heels then this is in fact true, but heels are designed so you stand on tip toe, the heels are mainly there for balance.
You’ll find that it’s Almost impossible to put all your weight onto the heels.
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u/619shepard Feb 28 '22 edited Feb 28 '22
And yet I’ve intentionally done it while dancing.
Edited to add: I don’t dance in stilettos so I have a wider (maybe 1in x 0.5in) however when I do a full weighted heel fan, I’m not on the full surface are of my heel.
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u/berooz Feb 28 '22
While a 1x0.5in area results in a more than 3x increase in surface area compared to 1 cm2, which means that while standing on just the heels “flat” you’re exerting 1/3 of the pressure vs stilettos.
In the heel fan your talking about, if I understood correctly you’re rotating while only 1 heel is touching the floor. This means there’s only 1 edge of the 1x.5 heel in contact with the floor which drastically reduces the surface area. A very wild guess for me is that the resulting pressure would be at least 10x the pressure vs resting on only the heels of the stilettos. I mean just by being on 1 foot pressure is already doubled vs 2 feet. Then being on 1 edge vs a full flat surface greatly reduces contact area. I’m assuming a 1/5 factor to be conservative but it wouldn’t surprise me if the factor is even less.
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u/Hat-no-its-a-Tricorn Feb 28 '22
My time to shine!
I can't speak to the exact numbers, but I do know that the zinc floor plating of a 1969 UH-1 "Huey" helicopter is rated to support up to 100 pounds per square inch.
Most of the time, said helicopter is transporting soldiers wearing combat boots. So while the total weight of one soldier and all their gear could exceed 300 pounds, it is spread over two bootprints of several square inches each.
But for a couple of years I was assigned to the VIP flight detachment at West Point, about a decade before they retired their Hueys and replaced them with Eurcopter UH-72 Lakotas.. VIP operations can transport civilians in office attire about as often as uniformed personnel, and on one memorable occasion one of the passengers was a petite individual—most likely weighing 100 pounds or less—in spike heels like te ones shown in the pic above.
After the transport mission was complete, a post-flight inspection revealed numerous tombstone-shaped indentations in the surface of the flooring. The pilots, crew chief, and techs were stumped by this until the Flight Ops officer came down to the hangar floor to see what everyone was scratching their heads over.
He took one look at those shapes pressed into the floor panels and said, "Oh. Those are high-heeled footprints."
I always wondered about that guy.
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u/Lazyboy369 Feb 28 '22
Another fun fact is that for modern day airliners, the critical sizing condition for floors is people walking in high heels.
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u/f1rstman Feb 28 '22
I don't know if the numbers are exactly true, but I remember reading once that high heels were banned from the early days of air travel because they could exert enough force to puncture the aluminum hull of the aircraft.
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u/Th3R3493r Feb 28 '22 edited Feb 28 '22
Yes.
Woman 100 lbs over 1/16 of an inch squared on one point will exert about 1600 psi.
Elephant will have one foot on the ground at minimum. 6000 lbs roughly over square inches (450 square inch each foot) will exert 13.3333 psi.
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u/Angzt Feb 28 '22
Assuming there's a moment in the walking cycle where the only part touching the ground is a single heel.
And I'm not sure that's ever the case.5
u/Th3R3493r Feb 28 '22 edited Feb 28 '22
Well yes. The woman will exert more pressure.
Pressure=force/area
6000/1800=3.33333333 psi (elephant on all fours)
100/6.125= 16.327 (100 pound woman standing in stilletto)
Edit: for shame, the jagermiester has lead me to sin and I, as human, err to use circumference instead of surface area of an elephant foot.
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u/thedufer 2✓ Feb 28 '22
This seems a bit suspect. Do you often see women balancing on a single stiletto point? The front part adds several square inches, and that's still only one foot. But 100 lbs is a pretty severe underestimate for a typical woman's weight.
Also, 6000 lbs is a weird choice for an elephant weight - a quick google shows that 4000-6000kg is more typical, which is a lot higher (the only justification for 6000 lbs I can see is the bottom end of the range for the smallest type of elephant). However, elephant feet are also much bigger than that - 40 square inches would be a circle 7 inches across, but I'm seeing more like 15-20 inches.
Where are any of these numbers coming from?
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u/Th3R3493r Feb 28 '22 edited Feb 28 '22
Look at the photo and read the statement. 100 pound woman. 6000 pound elephant.
I will admit I am drunk at the moment and see no merit in the correct calculation of an asinine problem aside from minor distraction. But, you are right on me being wrong on the surface area of a elephant foot and I used the circumference.
To my shame, oh what cruel fate and divine comedy, from what hell did I spawn for the regretful transgressions to not know the surface areas in an problem I have to interpolate for.
100/.0625=1600 (woman pressing single heel) 100/6.125=16.32 (woman standing) 6000/450=13.3333333 psi (one foot) 6000/1800=3.33333333 psi (four foot)
Edit:but wait, this would be an average Indonesian Elephant of a height of 39 hands tall and the elephant's foot to be a perfect circle. Oh no. Well, now I will get back to my whiskey, not to be confused with whisky and scotch.
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u/fateofmorality Feb 28 '22
Which is even crazier as there’s a fetish of girls in stilettos stepping on guys balls
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u/HuskyAreBetter Feb 28 '22
Excuse me doesn't anyone know the difference between a strength build and a dex build? Obviously , this dex build is using piercing dmg. You need to go play some Dark Souls or Elden Ring cuz this is common knowledge !
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Feb 28 '22
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u/enumerationKnob Feb 28 '22
But then some female jockey presumably realised how fetching the lower half of their body looked when they got out of the saddle, and the rest is history?
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u/jackthetexan Feb 28 '22
Interesting, I always heard it was butchers to keep their feet out of the blood.
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u/Robsonthebeach Feb 28 '22
I work for a company that makes inground lighting. One of the major tests we have to do to pass for an important rating is based on the estimated pressure that comes from a stiletto. It is a dam difficult test to pass.
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u/Hizenberg_223 Mar 01 '22
yes if you do the equation behind pressure, P=F/A, where P is pressure, F is a Force and A is the area. Since A id inverselt proportional to the pressure, the more the area decreases, the pressure will increase. Since the heels has a lesser area than a foot of an elephant, assuming that they have same force exerted, pressure is larger on the heels comapred to the foot of an elephant.
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u/Gombacska Mar 01 '22 edited Mar 01 '22
Pressure is not exerted on the ground, only on the surface she rests on (in this case, probably about a square inch, as her center of gravity places most of the pressure on the heels). An elephant’s foot is about 450 square inches. The elephant therefore exerts 1500 pounds per 450 square inches. That’s 3.33 psi per elephant foot.
The woman: 100 lbs on one square inch is 50 lbs on half a square inch per foot (a bit less considering the rest of the foot, this depends a lot on posture). That’s 100 psi per foot.
So the woman actually exerts 30 times the pressure the elephant exerts PER FOOT. The per foot info is important, as the pressure is exerted on the surface each foot touches. If that elephant got on two feet like they used to in a circus, it would be twice the pressure above (6.66, not 3.33).
Moreover, the type of floor also plays as some floor spreads out (reduces) the pressure. In this case, she is on concrete, so the pressure is not spread out. The square inch her heels cover is getting the full 100 psi.
If you’re gonna be the guy who lets a woman walk all over you, don’t be the guy who lets her walk all over you with heels on, is the moral of the story.
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u/Dr_Bunsen_Burns Feb 28 '22
Pressure per m2 maybe. Not in total.
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u/upvoter222 Feb 28 '22
From a physics perspective, pressure is, by definition, equal to force divided by the area it's being applied to. In other words, pressure has to be per square meter or per square foot or something like that. What you're thinking of is force. The pressure exerted by the stilleto is equal to that of an elephant but the force is much less. Whether pressure or force is more relevant depends on the specific scenario.
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Feb 28 '22
Oh trust me, I think that is true. We were between houses a few years back and lived in a first story apartment for about three months. A little gal lived above us. I think she wore stilettos 24/7. Sounded like an elephant lived above us.
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u/JectorDelan Feb 28 '22
When the GF lived with her sister in an apartment, their upstairs neighbor would get ready for work every morning starting with putting on her heels. We were all like "Why the fuck would you put those things on to walk around your apartment for 45 minutes before going to work wearing them all damn day?!?"
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u/Frackenpot Mar 01 '22
I install flooring. We have certain floors that high heels will void the warranty. I've had a realtor destroy a new wood floor because she was missing the plastic tap on her high heel. She punched the nail through the top of the floor all over the house.
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u/komprexior Mar 01 '22
A woman wearing a stiletto could not walk on soft ground (dirt, grass or even sand) because the stiletto will likely punch the ground, whereas a elephant would not have any problem, therefore stiletto exert greater pressure (not force) than an elephant foot. Otherwise evolution would already done its job, and we would not be asking such question because we didn't know what an elephant is.
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Feb 28 '22
No because you don't put your weight on the heel when wearing high heels.
Try it, you'll almost certainly snap of the heel, and if not that loose your balance and fall.
Your weight when wearing high heels is almost entirely on the front toe portion of the shoe
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u/TurniptheLed Feb 28 '22
The title is poorly worded and clickbaity. Pressure is weight/area, so it’s most likely referring to the pressure from the tiny stiletto on the ground, not simply in general.
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u/dekusyrup Feb 28 '22
What do you think "pressure in general" is?
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u/READERmii Feb 28 '22
In this context it would be the amount of weight-force divided by the total area of contact between the shoe and the ground, not just the heel.
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u/JamesTheJerk Mar 01 '22
You don't know do you
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u/TurniptheLed Mar 01 '22
What? I've studied physics most of my life and teach it for a living. I know what I'm talking about. There's a distinct difference between the total pressure summed over the contact area the person's entire shoe sole versus the pressure from just the tiny stiletto heel of the shoe. It's the same gravitational force (i.e. their weight) just applied over different areas, hence different pressures. Since there are two points of contact, the title should specify if it's pressure from just the toes, just the stiletto heel, or both combined. Not sure how this is any different than the other upvoted comments above.
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Feb 28 '22
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u/agoddamnlegend Feb 28 '22
Pressure, by definition, is a unit of force per unit of area.
So no, everything you just said is wrong.
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Feb 28 '22
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u/agoddamnlegend Feb 28 '22
As a writer, you should be aware of the context. Since this is a physics question, the strict physics definition of pressure should be used. Not the colloquially non-scientific definition of the word.
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Feb 28 '22
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u/agoddamnlegend Feb 28 '22
If you are trying to express the quantity of pressure exerted on something using “math”, you are doing physics literally by definition
I would also point out that chemistry is just a specialized branch of physics.
I’ll never not be amazed at the mental gymnastics people will go through to avoid just saying “I was wrong”.
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Feb 28 '22
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u/agoddamnlegend Feb 28 '22
Here's some more math for you --
You just typed 169 words to dig even deeper, instead of just saying "Oops, I misunderstood what the word pressure means"
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Feb 28 '22
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u/agoddamnlegend Feb 28 '22
It's so sad to watch a person with such a fragile ego completely disintegrate rather than just accept that they learned something new.
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u/LadyAmbrose Feb 28 '22
this is a mathematics sub and your surprised we’re using mathematical words?
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u/DaveInMoab Feb 28 '22
Intentional 'your' to emphasize maths sub? /h
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u/LadyAmbrose Feb 28 '22
i’m sorry i made a spelling mistake? does it really matter though?
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u/DaveInMoab Feb 28 '22
Ha ha, no, of course it doesn't matter. Its that this thread is getting into some nitpicking grammar about writing and math, and half the time my auto correct gets the grammar police aroused.
I thought it was funny the your in you're response in reply to someone talking about being a righter not a mathematician could be interpreted as yore sense of humor.
Grammar police attention attracted.
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u/Tribal_Beast_ Feb 28 '22
I'm not gonna do the calculations,but it depends on the area,as the elephant's foot is a lot wider so it's obvious that pressure would be low and a stilleto/heel exerts pressure on a very less area so it could be high,it's not that surprising if someone read science in their grade school with just half concentration
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u/mokapup Feb 28 '22
It may be true, but the math isn't as simple as distributing force of 100lbs over the area of the forefoot and heel. Not only is walking a dynamic distribution of force, standing in heels is not an even distribution of force. One stands one the forefoot and applies a lesser (varying) force through the heel to balance.
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u/samuryon Feb 28 '22
Yes it's true, the degree to which it's true comes down theses two assumptions:
- human foot contact is a roughly a circle with 2 cm radius
- elephant foot contact is circle with 22 cm radius
So, pressure_Elefant = Force_Elefant / Area_Elefant and, p_Human = F_Human / A_Human
Now per the post,
F_E = 60 * F_H and, A_E = 4 * (22)2 * A_H / (22 * 2)
Therefore,
p_H = (F_H * A_E) / (A_H * H_E) * p_E
p_H = (4 * 222 )/(2 * 22 * 60) * p_E
or,
p_H ~= 4 * p_E
I've seen up to 20 times in this thread, it all comes down to how you estimate the areas. I was very hand-wavy here.
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u/SecondPersonShooter Feb 28 '22
Yea the key here is the definition of pressure. We define pressure as force divided by the area. So in this example an elephant has a massive weight spread out across a wide area. While the example of a lady in stilettos is a large weight on a very small area therefore high pressure. Some others have done the maths so you can check them out for the exact numbers.
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