science is neat, how the hell is that thing only 1 cell? wtf?

Hey subby
iamoebakickinyoarse u keep talkin bout my momma

Hope they don't botch the acetylcholine test.

/you would not have survived it

My mom's trench has yet to be fully explored, the biology yet to be fully catalogued.

Giant amoebic dysentery: the noisy killer.

Why would humans be crushed at those depths? Aren't we mostly water too? Do we have a lot of air bubbles in our bodies or something?

Any of you farkers physiologists?

I mean, I know the obvious answer is "because we're adapted to surface pressures, you dolt", but what physical differences do deep-sea animals have from surface animals?

I would have a witty comeback for subby, but I'm too busy having a 3 way with his mom and dad both at the same time.

Did have an exhaust port that is only 2M wide?

MBooda: Hope they don't botch the acetylcholine test.
[images.wikia.com image 600x450]
/you would not have survived it

Thank you, Captain McCoy...

This thing's 20cm across, one cell! Holy shiat!

FTA: To protect the cameras and lights from crushing into smithereens, Hardy and his team constructed a sphere, 17 inches in diameter, made out of 1-inch thick-glass. Hardy said the thickness and strength of the glass allows the sphere to withstand the deep-sea pressures. "When it's deep underwater, every inch of the outside of it has the weight of the equivalent of two automobiles on it," he said.

That means that's the weight amoebas are withstanding too.

No. The ameobae are as incompressable as the water around them. They have no inner spaces like light bulbs and waterproof cameras to crush.

This reporter needs to go back to middle school science class.

They look more like a colony composed of single celled organisms.

So how big would they be if they were brought to the surface? I mean, sure they would explode partway up, but would they expand because of the reduced external pressure?

Whoever wrote the article neglected to mention Trieste's descent into the Mariana Trench in 1960.

People have been down there. As far as we know, they never went back.
Kinda like the Moon.

Chevello: So how big would they be if they were brought to the surface? I mean, sure they would explode partway up, but would they expand because of the reduced external pressure?

They do not have swim bladders like fish, so they might not explode. Does seawater taken from depth to the surface fizz with gas bubbles like soda? expand much?

32oz High Life: Why would humans be crushed at those depths? Aren't we mostly water too? Do we have a lot of air bubbles in our bodies or something?

From Wikipedia (new window)

Barometric pressure

These animals have evolved to survive the extreme pressure of the sub-photic zones. The pressure increases by about one atmosphere every ten meters. To cope with the pressure, many fish are rather small, usually not exceeding 25 cm in length. Also, scientists have discovered that the deeper these creatures live, the more gelatinous their flesh and more minimal their skeletal structure. These creatures have also eliminated all excess cavities that would collapse under the pressure, such as swim bladders.[1]

Seems to be the case. Our bones aren't very dense, we have big ole lungs and all sorts of cavities that would just get squished underwater.

platedlizard: [oceanexplorer.noaa.gov image 600x514]

This thing's 20cm across, one cell! Holy shiat!

Caulerpa (a seaweed) can grow more than nine feet long with hundreds of fronds. Yet, it's a single cell that happens to have multiple nuclei. Maybe this amoeba is the same way?

On the plus side, at least they can't swim up your nose into your brain.

BenJammin: On the plus side, at least they can't swim up your nose into your brain.

They will give it one hell of a try though.

Chevello: So how big would they be if they were brought to the surface? I mean, sure they would explode partway up, but would they expand because of the reduced external pressure?

They would look like this:

Ph'nglui mglw'nafh Cthulhu Mariana Trench wgah'nagl fhtagn

PirateKing: BenJammin: On the plus side, at least they can't swim up your nose into your brain.

They will give it one hell of a try though.

hopefully the soda i'm snerking out of my nose will be some protection.

Nickelback: Ph'nglui mglw'nafh Cthulhu Mariana Trench wgah'nagl fhtagn

That's what Cthulhu said shortly before being crushed to death by the immense pressure of the deep sea.

You gonna eat your amoeba?

Nah, I thought I was hungry but I wasn't

thursdaypostal: 32oz High Life: Why would humans be crushed at those depths? Aren't we mostly water too? Do we have a lot of air bubbles in our bodies or something?

From Wikipedia (new window)

Barometric pressure

These animals have evolved to survive the extreme pressure of the sub-photic zones. The pressure increases by about one atmosphere every ten meters. To cope with the pressure, many fish are rather small, usually not exceeding 25 cm in length. Also, scientists have discovered that the deeper these creatures live, the more gelatinous their flesh and more minimal their skeletal structure. These creatures have also eliminated all excess cavities that would collapse under the pressure, such as swim bladders.[1]

Seems to be the case. Our bones aren't very dense, we have big ole lungs and all sorts of cavities that would just get squished underwater.

Yeah, but I imagine our lungs would just fill with water, which would equalize the pressure. Probably the same thing with our GI tract. I suppose the bones would get us.

Clearly we would drown, but I've never entirely understood why pressure would compress our mostly-water body so much that we'd be squished...

Here's a crazy story about explosive decompression. (new window) It describes how fats seemed to precipitate out of the blood of the poor exploded bastards. So I guess I could see how pressure might make things go into solution that normally aren't, which would clearly kill us, but I guess maybe the "we'd be smashed to the size of a peanut" story I've always heard is just a myth?

I'll never know, because I tried to googling "high pressure injuries", but stopped because the pictures kind of made me want to barf...

it creeps
And leaps and glides and slides
Across the floor
Right through the door



And all around the wall
A splotch, a blotch
Be careful of The Blob!

Kozmopoliskepticalopsis: Chevello: So how big would they be if they were brought to the surface? I mean, sure they would explode partway up, but would they expand because of the reduced external pressure?

They would look like this:

The Lindsay Lohan / Playboy thread is over on the Entertainment tab. Thks

whither_apophis: Kozmopoliskepticalopsis: Chevello: So how big would they be if they were brought to the surface? I mean, sure they would explode partway up, but would they expand because of the reduced external pressure?

They would look like this:

The Lindsay Lohan / Playboy thread is over on the Entertainment tab. Thks

They would look like this:

Under pressure.

Day_Old_Dutchie: it creeps
And leaps and glides and slides
Across the floor
Right through the door

[img841.imageshack.us image 482x318]

And all around the wall
A splotch, a blotch
Be careful of The Blob!

Or this will happen to you:

Kozmopoliskepticalopsis: whither_apophis: Kozmopoliskepticalopsis: Chevello: So how big would they be if they were brought to the surface? I mean, sure they would explode partway up, but would they expand because of the reduced external pressure?

They would look like this:

The Lindsay Lohan / Playboy thread is over on the Entertainment tab. Thks

They would look like this:

[i280.photobucket.com image 300x300]

fap.

Kozmopoliskepticalopsis: Chevello: So how big would they be if they were brought to the surface? I mean, sure they would explode partway up, but would they expand because of the reduced external pressure?

They would look like this:

[i280.photobucket.com image 460x288]

So there's a live-action Ziggy movie?

Probably still unfunny.

32oz High Life: Yeah, but I imagine our lungs would just fill with water, which would equalize the pressure. Probably the same thing with our GI tract. I suppose the bones would get us.

Clearly we would drown, but I've never entirely understood why pressure would compress our mostly-water body so much that we'd be squished...

Here's a crazy story about explosive decompression. (new window) It describes how fats seemed to precipitate out of the blood of the poor exploded bastards. So I guess I could see how pressure might make things go into solution that normally aren't, which would clearly kill us, but I guess maybe the "we'd be smashed to the size of a peanut" story I've always heard is just a myth?

I'll never know, because I tried to googling "high pressure injuries", but stopped because the pictures kind of made me want to barf...



Yes, you're surely right. I've always had the same reaction when hearing the "smashed to the size of a peanut" stuff -- it only makes sense for someone going from surface pressure going down to that pressure, not any living thing that's already equalized. Things down there wouldn't have to be extraordinarily tough, any more than we have to labor to keep a hundred kilometers of atmosphere from crushing us.

Pressure does effect many things, though-- solubility (like you said), how dense various compressible fluids are (which would account for air bladders being of less use to fish for managing buoyancy, below certain depths), melting/freezing points and boiling/condensing points of all sorts of substances, probably the permeability of some types of membranes, etc.

This is just a guess, btw, but the solubility issues might make it somewhat harder to deposit some types of substances used to make harder materials like bone, cartilage, and chitin.

MBooda: Hope they don't botch the acetylcholine test.
[images.wikia.com image 600x450]
/you would not have survived it

FTW! We just watched that one last night. GF has never seen Star Trek, so we're going through....one a night

FTFA: "When it's deep underwater, every inch of the outside of it has the weight of the equivalent of two automobiles on it,"

Pressure, how is it measured?

Bruxellensis: FTFA: "When it's deep underwater, every inch of the outside of it has the weight of the equivalent of two automobiles on it,"

Pressure, how is it measured?

In automobiles per square inch! Jeez, don't you even look at what you post?

/Some people....

SwiftFox: FTA: To protect the cameras and lights from crushing into smithereens, Hardy and his team constructed a sphere, 17 inches in diameter, made out of 1-inch thick-glass. Hardy said the thickness and strength of the glass allows the sphere to withstand the deep-sea pressures. "When it's deep underwater, every inch of the outside of it has the weight of the equivalent of two automobiles on it," he said.

That means that's the weight amoebas are withstanding too.

No. The ameobae are as incompressable as the water around them. They have no inner spaces like light bulbs and waterproof cameras to crush.

Um... that doesn't mean that there isn't any pressure on them. Just because a structure is not being crushed doesn't mean that it isn't sustaining pressure, it only means that the large forces acting on it are static. Your reasoning is akin to arguing that the foundation of a skyscraper is not sustaining any pressure because it is solid.

VegasVinnie: Bruxellensis: FTFA: "When it's deep underwater, every inch of the outside of it has the weight of the equivalent of two automobiles on it,"

Pressure, how is it measured?

In automobiles per square inch! Jeez, don't you even look at what you post?

/Some people....

No, dumbarse, it's measured in car weight per linear inch. Your square inches are no good underwater. At least, according to the wise author of the article...