this post was submitted on 08 Nov 2024
119 points (96.9% liked)

What is this thing?

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Let us help you identify that mysterious object you’ve found.

Currently in CHALLENGE mode: If you've got something obscure knocking about, post a picture, and let's see how we do. Please prefix such posts with "CHALLENGE:" so we know we've got a fighting chance.

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[–] [email protected] 118 points 1 week ago* (last edited 1 week ago) (3 children)

Sensor/thermal bulb from a capillary tube. Likely from a refrigerator.

[–] BartrandDuGuesclin 18 points 1 week ago (1 children)

Alright, thank you! 17 years of wondering are finally over.

[–] [email protected] 16 points 1 week ago (1 children)

You should still keep your piece of trash just for the memories, now.

[–] BartrandDuGuesclin 21 points 1 week ago

Of course! It is my most dearest piece of trash.

[–] [email protected] 12 points 1 week ago (1 children)
[–] [email protected] 20 points 1 week ago* (last edited 1 week ago) (1 children)

From a quick search, it is used to control the flow of refrigerant based on its temperature. The tube deforms based on how hot or cold the refrigerant is, and there are contacts on the tube to switches that permit or resrrict coolant flow

In other words, it's a simple thermostat

[–] [email protected] 4 points 1 week ago (1 children)

Wow, that’s pretty clever.

[–] [email protected] 6 points 1 week ago

Physics, yo

[–] [email protected] 6 points 1 week ago

Just to add my 2 cents, it's more likely a filter/drier from a refrigerator. Those are much more common, even though a sensor/thermal bulb looks very similar.

[–] CM400 48 points 1 week ago (1 children)

It looks similar to part of the cooling system on the back of my refrigerator.

[–] givesomefucks 20 points 1 week ago (2 children)

Yeah. It's just random (relatively) modern piece of tubing that either fell off a boat or was tossed over board.

Cool memory for OP, and they picked up a piece of trash from the ocean.

[–] BartrandDuGuesclin 11 points 1 week ago* (last edited 1 week ago) (1 children)

I always thought it might've came from a fishing boat. I guess that could still be the case. Pretty funny.

[–] givesomefucks 11 points 1 week ago

Yeah, cool for you and a priceless reminder of a childhood vacation.

Just not something worth any money or even worth passing down thru the family.

If you ever watch Mitchell and Webb they have a bit where archeologists find a VHS cassette of a toga party and insist it's an authentic recording from ancient Rome.

[–] [email protected] 1 points 1 week ago* (last edited 1 week ago) (1 children)

Picking up trash under water is not the same as picking up trash on land. The small piece OP collected was probably ok, but the damage you can do to the ecosystem by removing a bottle or other big chunks that have been there for years can be really bad. I hope all divers have that in mind when they explore the underwater world.

Edit: I don't get the downvotes, I'm not making this up. It's one of the first things you learn as a CMAS diver.

[–] BartrandDuGuesclin 4 points 1 week ago (1 children)

I can't confirm if that's true, but that is actually oddly interesting. Maybe the downvotes because... It sounds so weird?: adding trash to water is bad, but removing trash can also be bad?

It is really a headscratcher for me too, would like to read some info about it if you can share some sources?

[–] [email protected] 5 points 1 week ago

There's just a different "quality" of trash. Something deeply embedded in the ecosystem will become part of it. If you plug a bottle or large piece of metal from the floor you will destroy some form of habitat. Floating plastic has to go of course, as well as strings or nets.

[–] BartrandDuGuesclin 25 points 1 week ago (3 children)

Another picture to have an idea about the size of it.

[–] VubDapple 15 points 1 week ago (1 children)

It's conventional to use a banana for scale, but a hand will do in a pinch I guess.

[–] [email protected] 19 points 1 week ago (1 children)

That hand is, in fact, in a pinch, so we have no problems!

[–] BartrandDuGuesclin 7 points 1 week ago (1 children)

Ah, good. The problem resolved itself. I can continue being somewhat lazy

[–] [email protected] 5 points 1 week ago

And somewhat italian.

[–] BenLeMan 5 points 1 week ago

Phew. The small size, combined with other people surmising it might be part of a refrigerator greatly alleviates my worries you might have picked up a piece of unexploded munitions from WW2. Which is an all too common thing over here in Germany.

[–] [email protected] 2 points 1 week ago
[–] AFreeLarryHoover 18 points 1 week ago (2 children)
[–] essell 18 points 1 week ago (1 children)
[–] BartrandDuGuesclin 5 points 1 week ago

Thank you, i will never stop calling it that now!

[–] [email protected] 10 points 1 week ago

There could be dangerous coolant in it. When scrapping devices using coolant, the workers used to make it pump it into this chamber, then squish the end tight, roll it a bit, then remove it.

[–] Jerb322 5 points 1 week ago (1 children)
[–] BartrandDuGuesclin 4 points 1 week ago

I think it is, yes.