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 Inter237
Male, 18-29, Midwest US
 2449 Posts
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Sunday, December 19, 2010 9:23:39 AM
Huge |
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 Kiete5
Male, 18-29, Eastern US
123 Posts
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Thursday, September 09, 2010 11:46:35 PM
@omg-a-lion ..Thank you for reminding me about a movie that totally wasted an hour and a half of my life... I want that time back. |
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 fhj52
Male, 50-59, Southern US
1 Posts
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Sunday, June 27, 2010 2:11:38 PM
fredg3 & BlastechDL44:
There IS confusion in the document. The Hadal zone extends from about 6096 meters(20k ft.) to the bottom, whatever that may be. The pressure at 36k feet, the bottom of Mariana Trench, is about 16kPSI. However at 20k ft. the pressure is approximately 9k PSI.
BlastechDL44, you forgot to multiply by the 14.7 PSI.
E.g., 20k/33 = 606.0606; 606.0606 *14.7 =~ 8909.0909 =>~ 8909 PSI at 20k ft.
...or roughly 9k PSI.
That's a guesstimation method.
The more proper method, using formula that gives the P pressure on an object submerged in a fluid( P = Ï * g * h ) and adding atmospheric pressure on the surface yields ~ 8896 PSI at 20k ft.
* Ï (rho) is the density of the fluid, (density of sea water = ~1025 kg/m3 )
* g is the acceleration of gravity (9.8 m/s2)
* h is the height of the fluid above the object
The author of this pic got confused, most likely, because the wiki document referen |
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fredg3
Male, 18-29, Eastern US
1 Posts
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Tuesday, February 23, 2010 12:15:03 PM
No, BlastechDL44, YOU'RE WRONG. The illustration does NOT claim that 20,000 ft = 1,100+ atmospheres. The relationship is between pounds per square inch at the surface of the earth and at the depth of 20,000 feet. That is, it's between 16,000 psi and 14.7 psi. (14.7 psi being the pressure from the atmosphere at sea level.)So you can wipe that smug look off your face now. |
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BlastechDL44
Male, 40-49, Canada
1 Posts
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Monday, February 22, 2010 10:10:35 AM
I'm surprised there are five pages of comments and no one has caught the fact that this striking image contains bogus numbers.The pressure of seawater increases at a rate of about 1 atmosphere per 32 feet (33 feet in fresh water), give or take. The claim made in this image is that 20,000 ft = 1,100+ atmospheres. That is incorrect. 625 would be more accurate. The pressure at the bottom of the challenger deep is over a thousand atmospheres, according to the wikipedia, and basic arithmetic. So, its a nice illustration, but factually incorrect. |
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 GuardinGnome
Male, 18-29, Eastern US
2900 Posts
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Sunday, February 21, 2010 9:03:59 AM
Holy s**t.
It's stuff like this that really makes you think. |
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 omg-a-lion
Male, 13-17, Australia
115 Posts
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Thursday, February 18, 2010 11:49:04 PM
@SkirjamesLike clover field? |
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 skirjames
Male, 18-29, Eastern US
109 Posts
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Thursday, February 18, 2010 8:53:13 PM
Another thing - http://en.wikipedia.org/wiki/Deep-sea_gi...deep sea gigantism..I remember when the waves would come in and if you dig fast enough you can grab one of those little guys and watch him scurry around, these are over a foot long..what the hell else could be down there and grow even bigger!? |
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 akabane
Male, 18-29, Eastern US
1051 Posts
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Thursday, February 18, 2010 5:48:07 AM
thats crazy. Machines can barely make it that far, yet life still exists there. makes you wonder |
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 MattPrince
Male, 40-49, Europe
2221 Posts
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Thursday, February 18, 2010 5:19:23 AM
The chimeara Harriotta haeckeli has been retrieved from 2600m by russian trawlers, and bluntnose sixgills are thought to go down to about the 2000m mark (Source Elasmodiver). Some scientists don't think you'll find sharks below the 3K mark - but so little is known about these depths... |
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 fishgul69
Female, 18-29, Eastern US
917 Posts
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Thursday, February 18, 2010 2:02:18 AM
how far down can sharks go down? |
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 sourkrauter
Male, 18-29, Midwest US
899 Posts
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Wednesday, February 17, 2010 4:35:48 PM
thats intense |
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Pyroo
Male, 18-29, Europe
108 Posts
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Wednesday, February 17, 2010 3:15:03 PM
regalia13: "Trieste departed San Diego on October 5, 1959 for Guam aboard the freighter Santa Maria to participate in Project Nekton, a series of very deep dives in the Mariana Trench. On January 23, 1960, Trieste[1] reached the ocean floor in the Challenger Deep (the deepest southern part of the Mariana Trench), carrying Jacques Piccard (son of Auguste) and Lieutenant Don Walsh, USN. This was the first time a vessel, manned or unmanned, had reached the deepest point in the Earth's oceans. The onboard systems indicated a depth of 11,521 metres (37,799 ft), although this was later revised to 10,916 metres (35,814 ft) and more accurate measurements made in 1995 have found the Challenger Deep to be slightly shallower, at 10,911 metres (35,797 ft)." ~Wikipedia, Bathyscaphe_Trieste.
And now they're finding ways to make robotic subs. Who can keep up with this techonology?! If we keep this up, we'll soon invent somekind of coneshaped vehicles and fly to the moon! |
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 regalia13
Female, 18-29, Eastern US
203 Posts
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Wednesday, February 17, 2010 2:10:05 PM
@skirjamesThey are finding ways to build things like robotic subs they can control in the extreme depths. We actually do have pictures of the Abyssal Zone, I'm not positive on lower than that.
The biggest fear is send a human down because a sub would get crushed like a tin can, but from some research I did a year or two ago they have been working on subs or other robotic devices to send down to those depths. One of the biggest problems though is the ocean's current. It's hard to have things land where you want them to as they drift. |
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 NoxasRisen
Male, 13-17, Eastern US
86 Posts
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Wednesday, February 17, 2010 1:59:19 PM
I feel like I should be Google image searching the Abyssal Zone, but I don't think my pants need any crapping today... |
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 MetalicDemon
Male, 18-29, Europe
1712 Posts
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Wednesday, February 17, 2010 1:43:51 PM
wow, thats freaking HUGE!!!! |
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skirjames
Male, 18-29, Eastern US
109 Posts
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Wednesday, February 17, 2010 11:37:19 AM
This is some SERIOUSLY interesting stuff and one of my favorite posts in a long time. I really don't know much about such deep marine life but is there anyway we can encase cameras with lights to drop down there and take pictures? Or is the pressure nothing our technology can handle? I would seriously love to know what's down there..I suppose for now we can only imagine. |
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 SlapChopper1
Male, 18-29, Eastern US
155 Posts
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Wednesday, February 17, 2010 9:25:52 AM
still not as deep as your mom.... |
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 BunnyNaku
Female, 18-29, Midwest US
5245 Posts
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Wednesday, February 17, 2010 6:51:48 AM
0.0 |
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MrNathann
Male, 30-39, Western US
43 Posts
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Wednesday, February 17, 2010 6:25:45 AM
I know what's down there. He rests in waking slumber waiting for the stars to align. Sleeping restlessly for his time, once again, to rule... |
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 eskimo9
Male, 18-29, Australia
710 Posts
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Wednesday, February 17, 2010 5:41:02 AM
andAND perhaps you should stop over-analysing a drawing, and take away from this what was intended - i.e. the Mariana trench is flipping deep. |
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MattPrince
Male, 40-49, Europe
2221 Posts
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Wednesday, February 17, 2010 4:45:15 AM
and (frothing at the mouth now)AND The blue whale is drawn too small - I make it about 60ft long. It should be almost twice that length. |
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MattPrince
Male, 40-49, Europe
2221 Posts
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Wednesday, February 17, 2010 4:39:41 AM
Hold on - what's this cr*p about 350ft being the maximum dive depth of a blue whale? Says who? I thought that was about the level of an *average* blue whale dive. Besides blue whales are pansies. Sperm whales are thought to be able to reach several Kilometres down and Cuviers have been confirmed at almost 2km... |
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MattPrince
Male, 40-49, Europe
2221 Posts
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Wednesday, February 17, 2010 4:31:44 AM
"I made it to the Hadal Zone one time on a single breath of air. No big deal. "Dude it takes more than a single puff to get that bombed. Its a shame they didn't have the freedive marker on there though. 214 meters, according to my rather basic PADI knowledge that's 21 atm. Seriously scary stuff. |
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 matrixie
Female, 18-29, Europe
821 Posts
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Wednesday, February 17, 2010 4:16:57 AM
I bet there is something amazing at the bottom... |
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