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Author Topic: SCIENCE, Gravitational waves, and the whole LIGO OST!  (Read 515025 times)

miauw62

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Re: SCIENCE, the Higgs, and everything else!
« Reply #1680 on: July 13, 2014, 06:29:18 am »

Spoiler: Obligatory xkcd (click to show/hide)
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Lagslayer

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Re: SCIENCE, the Higgs, and everything else!
« Reply #1681 on: July 13, 2014, 11:27:35 pm »

Has this been posted yet?

http://www.digitaljournal.com/science/vantablack-the-darkest-material-ever-made/article/389583
Spoiler (click to show/hide)

Carbon fiber tubes properly arranged on aluminum foil, apparently, reflect only about 0.035% of light that hits it. No matter how you hold this stuff up to the light, you still can't see any of the surface features, only a silhouette.

Reelya

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Re: SCIENCE, the Higgs, and everything else!
« Reply #1682 on: July 13, 2014, 11:30:36 pm »

www.independent.co.uk/news/science/blackest-is-the-new-black-scientists-have-developed-a-material-so-dark-that-you-cant-see-it-9602504.html

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A British company has produced a "strange, alien" material so black that it absorbs all but 0.035 per cent of visual light, setting a new world record. To stare at the "super black" coating made of carbon nanotubes – each 10,000 times thinner than a human hair – is an odd experience. It is so dark that the human eye cannot understand what it is seeing. Shapes and contours are lost, leaving nothing but an apparent abyss.
Sounds like a pretty cool supermaterial, and I'm sure you guys can think up some applications for this. Stealth planes for a start.

Quote
The material conducts heat seven and a half times more effectively than copper and has 10 times the tensile strength of steel.
As mere side-effects obviously.

Fake-edit: Ninja'd by Lagslayer.
« Last Edit: July 13, 2014, 11:39:32 pm by Reelya »
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Descan

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Re: SCIENCE, the Higgs, and everything else!
« Reply #1683 on: July 13, 2014, 11:49:21 pm »

It's carbon nano-tubes, of course it's a bloody wonderwaffen.
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Sirus

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Re: SCIENCE, the Higgs, and everything else!
« Reply #1684 on: July 13, 2014, 11:55:25 pm »

As cool as it is, are we sure this is real? The Digital Journal links only to the Independent and the Daily Mail as sources, while the Independent doesn't link to anything at all. I'm under the impression that those two aren't exactly the most...honest of publications.
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MetalSlimeHunt

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Re: SCIENCE, the Higgs, and everything else!
« Reply #1685 on: July 14, 2014, 12:00:25 am »

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Sirus

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Re: SCIENCE, the Higgs, and everything else!
« Reply #1686 on: July 14, 2014, 12:06:58 am »

This might be it?
Looks like that's a couple of years old. Of course, it could be that they only announced it to the public after managing to semi-reliably produce the stuff.
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MetalSlimeHunt

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Re: SCIENCE, the Higgs, and everything else!
« Reply #1687 on: July 14, 2014, 12:14:40 am »

It's the only result on Google Scholar for Vantablack, and vanta by itself brings down a storm of foreign language papers that appear unrelated.
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Sheb

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Re: SCIENCE, the Higgs, and everything else!
« Reply #1688 on: July 14, 2014, 12:37:00 am »

And searching "Surrey Nanosystems" only brings up details of their process. It's hardly surprising that they won't publish the details though.
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Osmosis Jones

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Re: SCIENCE, the Higgs, and everything else!
« Reply #1689 on: July 14, 2014, 04:36:11 am »

It's the only result on Google Scholar for Vantablack, and vanta by itself brings down a storm of foreign language papers that appear unrelated.

And searching "Surrey Nanosystems" only brings up details of their process. It's hardly surprising that they won't publish the details though.

VANTA is an acronym, and is general to this type of research, so it's about as specific as googling carbon nanotubes. From Google Scholar, there's been two papers put out this year about VANTA CNTs on Al foils (as in the article) but neither list Surrey Nanosystems as a sponsor or research partner in the acknowledgements, so it is likely these are unrelated;

The partial space qualification of a vertically aligned carbon nanotube coating on aluminium substrates for EO applications, by Theocharous et al (same author as MSH's paper).

And

Freestanding foils of nanotube arrays fused with metals by Poenitzsch et al.

Ultimately, this is unsurprising; typically, industry based research isn't published, or at least, not until it's been patented to hell and back.

Now, as to the military applications, I actually don't think there'd be too many. Pure black is a horrible colour for camoflague, and I doubt it would have the same absorbance in radar wavelengths, so it's not so great for stealth planes. The linked article on VANTAs by MSH says it's spectrally flat in the IR range (0.8-14 um), so it might have some application in fooling thermal detection, but I doubt it.

Most likely, I'd say the biggest application would be as a heat-sink material; emissivity is equal to absorbance, so the blacker something is, the better a radiator it is. Coupled with the good heat conductance of the CNTs, this would be very helpful for dumping heat.
« Last Edit: July 14, 2014, 04:38:08 am by Osmosis Jones »
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Scoops Novel

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Re: SCIENCE, the Higgs, and everything else!
« Reply #1690 on: July 15, 2014, 01:11:55 pm »

Subsurface liquid water oceans on titan, which could explain the methane replenishment in it's atmosphere. Unlike Ganymede (come on! Multiple layers of oceans!), we don't know whether there's a rocky bottom, improving chances of life, and it's thought to be a bit of a sulfurous cocktail.

http://www.nasa.gov/mission_pages/cassini/whycassini/cassini20120628.html
http://www.jpl.nasa.gov/m/news/news.php?release=2014-217#.U8VJN7En9Wl
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Putnam

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Re: SCIENCE, the Higgs, and everything else!
« Reply #1691 on: July 15, 2014, 01:46:02 pm »

Subsurface oceans on Europa, Ganymede, Callisto, Ceres, and now friggin titan. I'm sure I've missed some. Yeesh.

Scoops Novel

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Re: SCIENCE, the Higgs, and everything else!
« Reply #1692 on: July 15, 2014, 02:04:30 pm »

Subsurface oceans on Europa, Ganymede, Callisto, Ceres, and now friggin titan. I'm sure I've missed some. Yeesh.


I'd missed some of those, thanks :D
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smjjames

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Re: SCIENCE, the Higgs, and everything else!
« Reply #1693 on: July 15, 2014, 02:08:51 pm »

Subsurface oceans on Europa, Ganymede, Callisto, Ceres, and now friggin titan. I'm sure I've missed some. Yeesh.

Encladeus as well I believe.

Also, didn't know that Titan has a subsurface ocean.
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MonkeyHead

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Re: SCIENCE, the Higgs, and everything else!
« Reply #1694 on: July 15, 2014, 03:29:45 pm »

Titan? Titan has fricken surface oceans of hydrocarbons in addition to a potential liquid layer.
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