Some examples:
A ring slides on but gets stuck trying to take it back off.
A kid puts his head through metal slats on a railing, but can’t pull it back through.
A girl gets her body in a clothes dryer, but can’t get back out.
If we can fit forward, shouldn’t we be able to fit backwards, too?
In: 358
I can explain the ring at least. When you slide it on, provided has any amount of snug fit, the blood vessels in your finger are compressed where the ring is but expands by extension on both sides (due to the displacement). This causes your finger to swell around it slightly which makes the ring unable to slide back off as easily. The tighter the ring, the more it swells and this harder to pull back off. When you wiggle it back and forth as you try and take it off you disrupt the compression dropping the swelling which allows the ring to slide off again.
>A kid puts his head through metal slats on a railing, but can’t pull it back through.
This is because of the ears. You can push your ears through forward, but since they’re flappy the other way they get stuck.
As for rings – my fingers swell and “un”swell throughout the day, so there are times of the day that I have more trouble getting rings off. My knuckles are also rather large, so a ring that fits below the knuckle just fine can have trouble passing over the knuckle to remove. Rings can also get stuck due to weight gain.
In the perfect world, that would be great! Unfortunately, what goes on, or goes through or goes in, doesn’t always come off, get out of or can back out the same way you went in. And I think that most of that has to do with panic and anxiety! Because you start panicking, you also start squirming and causing yourself to be wedged in tighter, or your fingers start swelling because you realize you can’t get the ring off or you can’t get your head out from between the slates because you have moved your head up higher and now you can’t back your body out of the dryer, because your not in the same position as you were when you got into the dryer
As an example, the guy who got stuck in the cave and died. The passage had a slight ridge that he was sliding over to get lower into the cave. To pass over it he exhaled and let his ribs flex. The pressure came off as he passed over and his ribs expanded. His ribs then basically hooked over the ridge and there was no way for him to compress them back down. It was too tight and too big a ridge.
That’s how it happens with all of these things. Compression doesn’t always work the same way going in the opposite direction.
With fingers, your fingers aren’t exactly the same size all the time. If you are really warm, for instance, they might be ever so slightly more flush with blood.
The real problem, though is that arteries, which take blood away from your heart to your extremities like fingertips) are DEEPER inside your body than the veins, which take blood from your fingertips BACK to the heart. Also, arteries have more blood pressure than veins. Blood in arteries in being pumped, blood in veins is flowing gently back.
So, say a ring can go on, but is nice and snug. if it is a tiny bit too snug, the blood going INTO the finger is under pressure, and deeper where the ring is not compressing the vessel. However, the veins at the surface are NOT under pressure, and the walls of the vessels might be partly compressed. Blood is going into the finger faster than it is going out, so the finger out past the ring starts to swell up with the extra fluid. As the finger gets a little bigger, the problem gets a little worse, right? now the ring won’t fit over the knuckle.
In the hospital, we use a technique where you wrap a string tightly around the finger just ahead of the ring to force the swelling out, then as you unwrap the string the ring advances over the knuckle.
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