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Videos (88) | Sift Talk (3) | Blogs (19) | Comments (93) |
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James Cameron Releases His First Ever Mariana Trench Footage
Geeze @dannym3141, I think you went a bit harsh there on @critical_d... I don't think he was AT ALL saying NOT to do space exploration, but rather it's a bit baffling that there has been so little deep sea exploration. It's entirely conceivable that things will be found down there that can change our life in large ways... some animal that produces some chemical that is a huge boon to science, some animal that changes how we think of biology... a relic of an alien civilisation.
OK, maybe not the last one.
There's more than enough reason to be doing both.
James Cameron Releases His First Ever Mariana Trench Footage
>> ^critical_d:

Odd how the scientific community seems to have more enthusiasm for exploring the oceans of Titan than our own. I read somewhere that the technological aspects of a dive like Cameron performed are as complex as a moon landing. I guess the thinking was that if something went wrong seven miles below then you are just as screwed as if you were in the Frau Mora Highlands. If the ultimate goal is to setup a colony on Mars or our own Moon, then we should practice in our own backyard first.
Firstly you make the mistake of assuming that all scientists COULD be working on deep sea exploration. There wasn't a scientist working on it but then a bloke pulled him away and asked him to do space instead. Not all of them enjoy marine biology, not all of them work in the correct or an analogous field.
Secondly, there is always the argument AGAINST directed research. That is, most of our most amazing discoveries happened through studying something else and often enough by accident, so why would directed research be any better? The cosmic background radiation was discovered at bell laboratories and they thought it was due to pigeon shit at first. You may as well go back in time and tell einstein to stop pissing about with light and help solve real world problems like in-car navigation. Then suddenly 50 years down the line we have no state of the art GPS system because he didn't go into relativity.
Thirdly, exploring deep sea trenches is, i believe, an engineering problem rather than a theoretical problem. Why would a scientist need to stop working on discovering things to help to either build or generate money for something?
Fouthly, if you think there's interesting stuff in the tiny amount of water that exists on our planet, you should read up on space.
Finally, at least some of the software tools developed by computational astrophysicists have been used to solve earth-bound problems such as climate change and weather systems, so if you study something else you may end up killing two birds with one stone.
Why the hell would anyone rather look at the ocean which is right next to us over the deepest reaches of space anyway? But if we find the key to faster than light travel down there, i'll be looking sheepish
Amazingly Beautiful Deep Sea Creatures
I love these cool deep sea creatures. There's a book on the subject called "The Deep" by Claire Nouvian, and it has loads of extremely cool pictures.
*length=292
Deep Sea Diver Egg Trick
Tags for this video have been changed from 'Deep sea diver, PADI, Flat Rock, Stradbroke Island' to 'deep sea diver, scuba, PADI, Flat Rock, Stradbroke Island' - edited by calvados
SpaceShipTwo - First Feathered Flight - Reentry Test
>> ^westy:
This is all good and fun , but really should we not be pioneering technology that caters to the pore and the majority of humans on the planet rather than a technology that will only cater to the super wealthy at first and then maybe the very upper middle western class in 30 years ?
As far as i understand the altitude for this craft would be to low and short lived for scientific use maybe some of the research from this will go into national space programs.
stuff like this is far better than war and entertainment is defiantly an important thing i still feel this for such a small section of privileged society that its just an insult to the majorty of people on earth.
“I do not think that the wireless waves I have discovered will have any practical application”
(Heinrich Rudolf Hertz)
Something to think about for you.
You make it sound like all researchers worldwide are only researching in ONE field which has no use (yet) for the poor. As for the "we" part of your statement: Virgin Galactic is a privately owned company and they can pioneer whatever technology they like.
Why should this be an insult to the majority of people on earth? Was the moonlanding an insult too? Or the space-programme of all spacefaring nations? What about arctic or deep sea research?
Don't get me wrong, I too am saddend by the devide between developed and undeveloped nations, but stopping "our" developement is not a solution. Even more so when all(certainly allmost all) technology for undeveloped nations to become developed is available.
(Yes, I know I am ignoring many other factors which keep the poor poor, but they have nothing to do with technological and intelectual advancement of the human species in general)
P.S. and while I'm already rambling: I really hate HD-embeds without the fullscreen button
Peter Tatchell on Homophobia in London. Wait, WTF was that?
>> ^Fusionaut:

Deep diving seamen at London protest against homophobia.>> ^blankfist:
I'm sure there's a homophobic joke in there somewhere involving "deep" sea divers or some such shit.
Meh, I was expecting something about butt pirates and... you know, it really is too easy to be funny.
Peter Tatchell on Homophobia in London. Wait, WTF was that?
Deep diving seamen at London protest against homophobia.>> ^blankfist:
I'm sure there's a homophobic joke in there somewhere involving "deep" sea divers or some such shit.
Peter Tatchell on Homophobia in London. Wait, WTF was that?
I'm sure there's a homophobic joke in there somewhere involving "deep" sea divers or some such shit.
Peter Tatchell on Homophobia in London. Wait, WTF was that?
Just in case you're not being sarcastic, Peter is being stalked by a mysterious deep-sea diver!
>> ^ghark:
What are we looking for, a double rainbow?
Between 1000 and 5000 Meters The Ocean Is WEIRD
This video has been seconded as a duplicate; transferring votes to the original video and killing this dupe - dupeof seconded with isdupe by chicchorea.
Between 1000 and 5000 Meters The Ocean Is WEIRD
*isdupe
>> ^Hybrid:
dupeof=http://videosift.com/video/Amazingly-Beautiful-Deep-Sea-Creatures
Between 1000 and 5000 Meters The Ocean Is WEIRD
This video has been nominated as a duplicate of this video by Hybrid. If this nomination is seconded with *isdupe, the video will be killed and its votes transferred to the original.
Between 1000 and 5000 Meters The Ocean Is WEIRD
*dupeof=http://videosift.com/video/Amazingly-Beautiful-Deep-Sea-Creatures
Water to Ice with a Vacuum
>> ^Psychologic:
>> ^SuperHotbUNZ:
I knew it would boil. I did not know it would freeze.
Actually, below .006 atm liquid water isn't stable... it either freezes or boils, depending on the temperature. If they had left it in the vacuum then it wouldn't have frozen. As said above this is what happens to a person tossed out of an air lock in space, and it is also closely related to the damage deep-sea divers experience if they surface too quickly.
Another interesting property of H2O is that adding pressure to ice at just under the freezing point (and above .006 atm pressure) turns it back into water, where as most substances freeze under increased pressure.
♥ Chemistry
Phase diagram for general fluids: http://www.teamonslaught.fsnet.co.uk/co2%20phase%20diagram.GIF
Phase diagram for water: http://www.cims.nyu.edu/~gladish/teaching/eao/water-phase-diagram.jpg
These diagrams show what you're describing. Notice the line separating solid and liquid. Under general fluids, the line tilts to the right showing that when pressure is added and temperature is constant, the phase of that fluid will move from liquid to solid. But for water, the line is tilted to the left, showing that with increased pressure at a constant temperature, ice would turn to water
Water to Ice with a Vacuum
>> ^SuperHotbUNZ:
I knew it would boil. I did not know it would freeze.
Actually, below .006 atm liquid water isn't stable... it either freezes or boils, depending on the temperature. If they had left it in the vacuum then it wouldn't have frozen. As said above this is what happens to a person tossed out of an air lock in space, and it is also closely related to the damage deep-sea divers experience if they surface too quickly.
Another interesting property of H2O is that adding pressure to ice at just under the freezing point (and above .006 atm pressure) turns it back into water, where as most substances freeze under increased pressure.
♥ Chemistry