Update: it took time. And then a quick pry with a knife. Saved the dishes. Ravioli saved too but for raccoons outside probably lol. What I learned about physics…sheesh.
Heat it to make the air expand
I have no idea what I’m looking at. Wth is a ravioli bowl? A bowl made specifically for ravioli?
Bowl of ravioli, my bad
an hour of prying
After that much work you should leave is as-is on your coffee table as an art/conversation piece.
That really sucks.
Someone slept through physics class a few times.
Heat and/or cold would be your friend in this situation.
Personally I would just toss the whole thing in the freezer for the night, but there is a small chance that results in a broken plate in the morning.
If you have an air compressor a blast of air right against the lip of the bowl would probably also pop it off.
Other than that just run hot water over the bowl (or submerge it) and then get the plate cold while being careful to not have the hot water touch the cold plate or visa versa.
Best of luck soldier.
The plastic was fused to the glass some how. I pryed it off and salvaged the plate. Also, I already tried all of that.
Oh you melted the plate to the bowl lol. That’s kinda impressive. It does make me wonder if your bowl was not dishwasher safe to begin with. Things shouldn’t be melting/fusing in the dishwasher.
*microwave and they are “reheat only” technically
Wouldnt be the opposite? What’s keeping the plates together is vacuum. What it needs is to heat the gas inside to make it expand and reduce the vacuum
Let me walk you through my 3 different answers.
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Shrinking the bowl and the plate at the same time might just pop the seal when left in the freezer all night. It would only take a couple Crystal forming in the right spot to break that seal.
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Blasting air into the seal could potentially resolve the pressure difference holding the bowl to the plate or force enough air into the bowl that it actually builds positive pressure inside and that pops the bowl off as well.
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Heating the bowl would get it to expand slightly and cooling the plate would make it shrink slightly so doing them at the same time could cause the perfect seal they have formed to shift enough that it allows the pressure to equalize/release.
It’s less about heating the gas inside the bowl to reverse the vacuum and it’s more about breaking the seal that has formed in the first place.
Amazing. Thanks!
But heating the gas inside would also work because, no matter how perfect the seal is, it won’t matter if there is no vacuum to hold the two pieces together.
This is the answer. Leave a hair dryer blowing at the thing for 5 or 10 minutes. It will heat the bowl, and also heat the air inside, which will expand.
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Microwave it on its side.
congrats you now have an elevated plate
By “ravioli bowl,” do you mean it currently has ravioli in it? If so, put it in the microwave for increments of like 30 seconds.
You got a fancy hat now
Hot ass water
Edit: Clarification: Poor hot ass water on it or dunk it in hot ass water
Edit 2, electric boogaloo: This is dependent on the material, according to my mother
My water is too bougie and I can’t morally exploit it into poverty… Elevated plate it is.
Instructions unclear, bowl still stuck to plate, but is now covered in sexy posterior dihydrogen monoxide.
Why does he need to rob the hot water first?
It had it coming
Can I use regulat hot water if I don’t have access to the ass water?
Ass water can easily made yourself. No need to get expensive store bought ass water
Yeah but KFC or Jack in the box isn’t as cheap as it used to be, the only cheap way to make it requires Taco bell now.
Nope. It has to come straight from the starfish
No, it must be from the ass.
Shit.
No, water.
Assuming its empty, i would take the grog oggah boogah solution of smash the blue plastic bowl down the edge of your countertop. Something will give sometime.
Otherwise, did you try twisting the bowl one direction and the plate the other? Torque is typically a more effective force than pulling for friction.
OP you monster, we need resolution.
The power of suction is physically limited. That means it either isn’t suction or op is crazy weak. My guess is that the plastic melted (probably not from boiling Temp) or op is strongly exaggerating.
@FreeBeard separates evacuated Magdeburger hemispheres by hand.
/s
These are 50 cm wide half spheres. If you find that comparable to the situation in the picture your appetite must be enormous.
The power of suction is physically limited.
Someone has never heard of Delta P.
The delta P you’re talking about has much much higher ambient pressure than what is the case here.
And even underwater there is a limit to delta P.
It’s delta p and not fraction p. The difference between ambient pressure and inner pressure (at least zero) is always smaller than ambient pressure. Delta p is therefore limited.
OK and? A difference of just 2 psi means that a bowl with diameter 4 in. (complete guess) is being held in place with ((4*π)=12.56*2)= 25 lbs of force distributed evenly across the surface of the plate.
A bigger bowl or greater suction changes these numbers dramatically. 2 psi on a 6 in. bowl is held in place with 37 lbs of force. 4 psi on a 6 in. bowl is held in place with 75 lbs of force.
Sure its “limited” in that there can only be a 14.7 pressure difference, but that doesn’t mean anything in terms of “this is really hard to undo”.
And if there’s oil or food or something sealing the gap between bowl and plate preventing the pressure from equalizing… fugheddaboudit.
I sadly don’t understand these units and your point is drained in it. The point I want to make is that the “force” of vacuum is limited by the difference of pressures.
You say it changes “drasticly” with area or suction but that is untrue. It changes linearly with area (not drastically) and pressure difference has a maximum. The maximum is defined by the pressure of the vacuum(=0) and the pressure of the ambient air (1 arm). Both are constant so the maximum is constant and actually not that big.
I could change all the units to potatoes and wombats and my point would still be valid. You are being intentionally obtuse to avoid admitting you’re wrong.
How do you figure suction is very limited? You’ve never tried to pull a suction cup straight off, have you? I’m not talking about when suction cups have bad sealing surfaces and slowly leak to the point of popping off or peeling suction cups off from a corner, I’m talking applying it to a good surface and then yanking it.
A shoddy 4.5" suction cup from Harbor Freight is rated at 80lbs carrying capacity for glass, which happens to likely be the same material as the dish (corelle), judging form the thinness. The bowl is probably plastic and had weight on it while these were hot and wet after washing. Please, let me know if you can lift an 80lb dumbell from the end with a single hand with ease.
The difference between ambient pressure and inner pressure is always smaller than ambient pressure. Delta p is therefore limited. The force comes from Delta p times contact area which is constant.
I sadly don’t know your units of mass but as I said a perfect vacuum over an area such as the Bowl is as strong as a muscle. The Ravioli will in no world produce a strong vacuum so muscle will win in most cases.
Here, I’ll do metric for you on your theory of muscle being equivalent perfect vacuum. I have some similar corelle dishes. The flat measures 10cm across. That’s 78. 5cm^2 area. Assuming OP lives at sea level, 1atm is 1.033kg/cm^2 which puts the total force at over 81kg. This bowl offers no horizontal surfaces to hook fingers under to utilize geometric advantages and is instead entirely dependent on friciton. If your fingertips can squeeze sideways with enough force to pull a smooth, tapered 81kg object without glue, there’s a gold bar in a Dubai mall with your name on it.
4 inches diameter, 12.6in^2, 180lbs for the Americans.
At some point between 0 and 81kg of force, I’d start worrying about breaking the plate with such little support around the rim. And, as for the impossibility of a perfect vacuum, I’d be easily convinced the bowl could have more than half of the maximum possible pressure differential. A large portion of the interior volume is probably ravioli, minimizing the gas volume. Ravioli are full of water, which means the remainder of gaseous volume in the bowl was probably mostly steam, pushing out the standard air. Steam has an insane compression ratio as it cools and condenses back into water, at about 1700:1. Go watch the video of a tank car imploding from steam condensation.
I cover my bowls the same way. I always cock the plate to the side for this exact reason. My 1L (4 cup) pyrex bowls with silicone lids can cave 1" if they’re allowed to cool for a minute. Steam easily vents from the rim as it’s produced but once it starts cooling, the weight of the lid or plate is plenty to get the initial seal
Air pressure is insanely high compared to a vacuum
The pressure acts over the area of contact. For a perfect vacuum it would lead to ~1kN of force. This is the same order of magnitude our muscles produce. If you take into account that the vacuum results from cooling over such a small temperature interval the force can’t be too high.
1kN is equivalent to lifting 100kg… 220lb for our imperial friends… I don’t think I could put that much force on a plate and bowl I was trying not to break
Your grip on a smooth plastic surface nearly parallel to the force vector you wish to apply is tiny, you cannot exert 1kN in this situation.
yeah it’s probably electromagnetic force holding it on there or something
It’s God.
That bowl and plate are all that keep this reality going
Could god microwave a ravioli bowl so hot even he couldn’t pry the plate off the top?
How can an ace be one and eleven? What kind of god would do that?
That stuck bowl of ravioli is slowly forming the next dominant species.
Take that Christians
You could try to get a fillet knife between them, if the hot water trick won’t work.
That bottom bowl looks plastic, just push on the side gently to try and break the seal around the other dish.
