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Deepest fish ever caught on camera off Japan

bbc.co.uk

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Re: Deepest fish ever caught on camera off Japan

#71

Post by morjom »

fredley wrote: post #60
Ekaros wrote: post #18

Earlier quoted context omitted.

I think it is just that gravity happens to be 9,81 m/s^2. On other hand 1kg being equal to 1 litre of water is by design in metric system. Other happens stance is that pressure on surface is about 101 325 pascals. So things work out that way...

I'm reasonably sure they're not identically accurate any more, but good enough for the kitchen. The kg was initially defined by the mass of the water, but as the kg has been redefined it's drifted a tiny bit.

Apparently the "new" kg (based on meter and second) is within 30 ppm (parts-per-notation, TIL) of mass of 1 litre of water.

Re: Deepest fish ever caught on camera off Japan

#72

Post by fredley »

morjom wrote: post #71
fredley wrote: post #60

Earlier quoted context omitted.

I'm reasonably sure they're not identically accurate any more, but good enough for the kitchen. The kg was initially defined by the mass of the water, but as the kg has been redefined it's drifted a tiny bit.

Apparently the "new" kg (based on meter and second) is within 30 ppm (parts-per-notation, TIL) of mass of 1 litre of water.

Like I said, good enough for cooking!

Re: Deepest fish ever caught on camera off Japan

#73

Post by notcensored »

ericrallen wrote: post #19

I just recently read the Brilliant Abyss[0] and it was a really interesting look at the deep ocean and the complexity of life down there. If this kind of thing interests you at all, I highly recommend it. I didn’t know much going in, but found it fascinating. [0]: https://helenscales.com/portfolio/the-sea-beneath-us/

[flagged]

Re: Deepest fish ever caught on camera off Japan

#74

Post by Retric »

noduerme wrote: post #44
Retric wrote: post #15

Earlier quoted context omitted.

Creatures living in the deep simply equalize their internal and external pressures and don’t feel the pressure as some kind of weight they need to withstand. This is why when you bring them to the surface quickly they die from the sudden decrease in pressure. As to eyes bioluminescence is common in the deep and nothing would bother if nobody had eyes.

I'm sort of curious how they don't simply explode when you bring them to the surface.

Water is largely incompressible decreasing in volume by 1.8% at the sea floor a 4km under the ocean, so returning to the surface doesn’t cause creatures to explode dramatically.. https://en.wikipedia.org/wiki/Properties_of_water#Compressib...

The problem is gasses both dissolved in tissues which causes cellular scale damage (Aka the bends) and internal pockets of air such as in swim bladders which can rupture.

Re: Deepest fish ever caught on camera off Japan

#76

Post by notcensored »

ericrallen wrote: post #19

I just recently read the Brilliant Abyss[0] and it was a really interesting look at the deep ocean and the complexity of life down there. If this kind of thing interests you at all, I highly recommend it. I didn’t know much going in, but found it fascinating. [0]: https://helenscales.com/portfolio/the-sea-beneath-us/

[flagged]

Re: Deepest fish ever caught on camera off Japan

#79

Post by notcensored »

ericrallen wrote: post #19

I just recently read the Brilliant Abyss[0] and it was a really interesting look at the deep ocean and the complexity of life down there. If this kind of thing interests you at all, I highly recommend it. I didn’t know much going in, but found it fascinating. [0]: https://helenscales.com/portfolio/the-sea-beneath-us/

[dead]

Re: Deepest fish ever caught on camera off Japan

#80

Post by notcensored »

ericrallen wrote: post #19

I just recently read the Brilliant Abyss[0] and it was a really interesting look at the deep ocean and the complexity of life down there. If this kind of thing interests you at all, I highly recommend it. I didn’t know much going in, but found it fascinating. [0]: https://helenscales.com/portfolio/the-sea-beneath-us/

[dead]
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