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Fish Pipeline Anonymous
Bad idea or really bad idea?
>> Anonymous
someone explain the physics of this to me...
>> Anonymous
IM ............... confused hummmmm i say it may be part of a future wall tank thingy i dont know just a guess
>> Anonymous
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Main flaw:
The tunnel vents at the lower end, which means that any bubbles getting in, will stay in.

On the plus side, you don't have to worry about the thing leaking onto your customers. Should a hole form, then air will bubble in, instead of water dribbling out.
Then again, the tube will empty itself into the two aquariums, causing them to flow over.
>> Anonymous
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The physics:
Air pressure holds the water in. Take a glass to the sink. Fill sink with water. Put glass in water and let the air bubble out. Put glass upside down. Pull glass up.
There is no magic "underpressure" or "suction". What happens is that the airpressure pushes the surface of the sink down, into the glass.
>> Anonymous
why cant they just save money and buy a bigger tank...
>> Anonymous
>>253686
because a bigger tank doesnt have a tunnel like this? the whole point is the novelty of the tunnel
>> Anonymous
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My question is: Would this harm the fish?

The water at the surface of the tanks will be under atmospheric pressure, but the water at the top of the tunnel will have a lower pressure.
Given that the height difference looks like about 5 ft, this means that the pressure will be about 85% of ambient pressure, corresponding to an airpressure of about one mile in altitude. Most fish don't go that climbing.
How would their gas bladder cope? If they end up in their, can they "exhale" extra gas from it, or would they need to contract it a lot?
>> Anonymous
This would scare me while high
>> Anonymous
>>253700
i dont think you really understand the physics.
>> Anonymous
Can the fish swim up the tube? Mini-Salmons?
>> Anonymous
This looks awesome though, seriously awesome.
>> Anonymous
>>253707
Enlighten me, then. Go on, make my day.

Unless you are referring fish phyics, aka biology. I admit not knowing details about the gas bladder works for buoancy and nothing about fish in general.
>> Anonymous
>>253700
I should really sleep. That post should have read:

>>Most fish live at lower altitudes.

>>How would their gas bladder cope? If they end up in the tunnel, can they "exhale" extra gas from it, or would they need to contract it a lot?
>> Anonymous
>>253744
oh snap, anon's ready for some intellectual throw down...
>> Anonymous
>>253744
ok lets assume you did your calculations correctly. lets say 85%. that would be around what, 12.5 psi? normal atmospheric pressure is ~14.7 psi so a difference of about 2.2psi. Now, lets remember we're talking about water here. 2.2 psi is the difference of about 1.5 meters underwater. now common sense would tell me that a fish can survive in a larger window than +/- 1.5 meters.
>> Anonymous
>>253752
Inconsistent units are inconsistent. Previously i used imperial, since i thought this would be more common here. But since you mention meters, i'll stick to SI. Meters <=> feet i can do, psi<=>atm<=>bar<=>Pa not so much...
Your calculation is redundant, btw. I guesstimated the height of the channel to be about 1.5m above the top of the aquariums, and then 'calculated' the pressure there (which you now did inversely) and compared that to the altitude at which this pressure occurs in the atmosphere.
So of course the pressure difference represents about 1.5m, since that's what i based it on...

I am also aware that fish can dive. However, this would mean increasing the pressure. Decreasing is another question. Consider the case where the tunnel is up higher. In water the maximum would be about 10m, and the pressure would approach vacuum. 10m below sea level is just twice the atmospheric pressure, and obviously fish can cope with that. If they can cope with near vacuum i don't know.

Maybe someone has input as to what would happen to the oxygen level at the top of this tunnel?
>> Anonymous
>>253678
You know, the air pressure inside is also less than the pressure outside.
>> Anonymous
>>253752
A change in atmospheric pressure that would normally occur over a meter within just a few feet?

Yeah, that sounds healthy.
>> Anonymous
>>253771
>>A change in atmospheric pressure that would normally occur over a meter within just a few feet?

>>a meter / just a few feet
>> Anonymous
>>253771
1 meter = 3.28 feet.
Fail.
>> Anonymous
Is it possible to have pet fish in Denver? Yes? Then they can safely swim through the elevated tube.
>> Anonymous
>>253777
oh wow
>> Anonymous
I have never in my life even thought I would find someone so stupid they believed any animal, let alone a fish, would get the bends or explode from swimming 5 feet up or down the water column.

But I was wrong.
>> Anonymous
>I have never in my life even thought I would find >someone so stupid they believed any animal,
>let alone a fish, would get the bends or >explode from swimming 5 feet up or down the >water column.

Shh, you're making people who failed physics (or chemistry) feel bad.

Basic gas laws ftw.
>> Anonymous
dude its fine fish dont even have lungs or an immune system just do it it will be sweet
>> Anonymous
>>253780
Denver is about a mile above sea level, so the pressure up there would be about what is being said in the thread.
>> Anonymous
>>253712
>>>Can the fish swim up?
Yes, fish can swim up.
>> Anonymous
>>253771

wat
>> Anonymous
>>253712
No fish cannot swim up, that's just an old wives tale, like dogs looking up.
>> Anonymous
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World's largest acrylic cylinder aquarium or world's largest fish death trap? you decide.