NASA Looking For "Diamonds In The Sky" 101
I Don't Believe in Imaginary Property writes "Scientist Charles Bauschlicher and his research team have found a new way to look for 'diamonds in the sky'. It may not be romantic, but diamonds shine especially brightly in the 3.4 to 3.5 micron and 6 to 10 micron infrared ranges, which should make NASA's Spitzer Space Telescope the perfect tool to see them with. Though less common and more monopolized on earth, diamonds are surprisingly common in outer space and the nanometer-sized bits comprise 3% of all the carbon found in meteorites. That means that if meteorite composition is representative of interstellar dust, that dust would contain about 10 quadrillion (1 * 10^16) nanodiamonds per gram."
DeBeers should be happy (Score:2, Funny)
Or something like that, anyway.
Re:DeBeers should be happy (Score:5, Funny)
Because any woman worth marrying knows that if meteorite composition is representative of interstellar dust, that dust would contain about 10 quadrillion (1 * 10^16) nanodiamonds per gram.
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Re:DeBeers should be happy (Score:5, Interesting)
Re:DeBeers should be happy (Score:5, Funny)
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Or was it, I got a new bass boat for my wife, Best trade I ever made.
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Not until some slave-labourer kid in a sweat shop in Bangalore has spent about 3 hours cutting the stone to shape and polishing it. Un-polished diamonds aren't called "rough" without good reason. They look like greyish pebbles with a moderate sheen on them. "Rock Crystal" quartz is far prettier. Compare these diamond [galleries.com] specimens with these rock crystal [galleries.com] specimens.
OK - I'm a geologist, so I might have different standards to the man on the Clapham omnibus. But I can imagine the result I'd
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It probably helped that the course was taught by someone who had a real interest in the field.
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Certainly does help.
My introduction to the field was through a geography teacher who wasn't himself particularly clued up on the field - the old "stay one chapter ahead of the kids" school of teaching - but he was well keen. It wasn't really any surprise to bump into him (and several other teachers) on top of a mountain during half term. Great minds think alike.
Deepness in the sky by Vernor Vinge (Score:1)
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Have you ever tried to sell a diamond [theatlantic.com].
It's all still true today (although you might have to swap some
country names here and there).
Even if you don't care about diamonds per se, the "gem" diamond business
is interesting for its unique economy and as an example of the power of
PR firms.
I will never by a "natural gem" in my life. Nothing says I love you like
pure zirkonium. Not that any woman would know the difference, anyway.
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Re:DeBeers should be happy (Score:5, Funny)
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Re:Diamonds at the core of gas giants? (Score:4, Informative)
And he was basing it on serious scientific speculation, but no one has any way of knowing for sure.
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I second (pun intended) this. IIRC, Jupiter was converted into a sun, so there must have been discussion on its chemical composition. OTOH, 2061 was about Halley's comet.
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I can't believe I remember this.
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Re:Diamonds at the core of gas giants? (Score:4, Interesting)
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Re:Diamonds at the core of gas giants? No see here (Score:1, Funny)
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Re:Diamonds at the core of gas giants? (Score:5, Informative)
Laboratory experiments [sciencemag.org] mimicking the temperatures and pressures found deep within those planets suggest diamond production is indeed possible, but would be more likely to be an agglomerate mass of diamond microcrystals than the yottacarat diamond solitaire envisioned by Clarke. Uranus and Neptune would probably make for better diamond production than Jupiter and Saturn due to a higher abundance of methane and thus carbon.
That being said, recent research suggests [newscientist.com] that Uranus and Neptune are not sufficiently carbon-rich to have produced an appreciable amount of diamond after all.
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Maybe that explains... (Score:5, Funny)
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I know who did it: Lucy, in the sky, with diamonds.
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Asimov would be pleased (Score:2)
So now that person actually has a reason to be doing that.
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Re:Asimov would be pleased (Score:5, Insightful)
Quite possibly if we do end up with asteroid miners, they'll be throwing away cheap carbon compounds like diamonds, in favor of useful ores like iron or nickel.
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Iron and nickel are extremely cheap and plentiful on earth. If it's mined for return to earth as a paying mining project, it won't be iron and nickel. As it is, only Helium-3 is worth going to space to mine, and I'm not sure I even believe that's viable. First, it assumes that fusion power is viable, it may be but it may take a long time to become
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Is not most of the Helium 3 present on space-borne objects due to the ejecta of the sun? IIRC, that's why Helium 3 is plentiful and only in the regolith of the Moon.
Asteroids may not have a similar layer of dust to adequately collect Helium 3. Asteroids are better for ores and rare earths that are in short supply or are too difficult to mine, such as copper, platinum, palladium, and perhaps uranium. Even though these materials would be valuable, it will probably be too inefficient to mine asteroids that
But can it find... (Score:2)
Wow... (Score:5, Funny)
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Diamonds, Sky (Score:5, Funny)
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Lucy in the sky with diamonds...
BPM 37093 (Score:1)
Nanodiamonds (Score:1)
It means that you can get a diamond engagement.. (Score:2)
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Re:Nanodiamonds (Score:5, Informative)
Re:Nanodiamonds (Score:5, Informative)
Industrial diamond is manufactured cheaply. You can even find it on eBay for a couple of bucks a carat.
The trick is getting a consistent grit/mesh/size so that you know how polished you can make your wafers.
I worked with a guy in the 80's who had a side business making diamond grinding compounds for customers in the bay area - he would pre-load his secret mixture into grease-guns he bought at Sears. They were single use, he told me. I don't remember why, something about screwing up the seals, or maybe a used grease gun put contaminates in the grinding goop... anyhow he made really good money at it for some reason, there must have been more to it than meets the eye. He was a retired nuclear physicist, so he knew what he was doing, when it came to small particles.
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I worked with a guy in the 80's who had a side business making diamond grinding compounds for customers in the bay area - he would pre-load his secret mixture into grease-guns he bought at Sears. They were single use, he told me. I don't remember why, something about screwing up the seals, or maybe a used grease gun put contaminates in the grinding goop... anyhow he made really good money at it for some reason, there must have been more to it than meets the eye. He was a retired nuclear physicist, so he knew what he was doing, when it came to small particles.
Dude! I know this guy, you and I have so totally worked in the same meth lab!
Re: Nanodiamonds (Score:1)
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Diamond are *not* uncommon on Earth (Score:2, Insightful)
Basketball Jones (Score:1)
More useful measurement? (Score:5, Funny)
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http://en.wikipedia.org/wiki/Caret/ [wikipedia.org]
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Us
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...and?? (Score:2)
Well, duh. It would be shocking if there weren't any carbon in the form of diamond out there. That fact would take some serious explaining.
And, er, so what? Obviously no one will ever mine diamonds in outer space, inasmuch as the cost to transport miners to them and the mined diamonds back utterly dwarfs the value of the diamonds, or even the cost to manufacture them.
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It's not clear to me that diamond is all that useful, anyway. The best use of it I can imagine is for super high quality windows for optical, UV and IR instruments. But for that you need very pure
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My sweetheart and that big fight centuries ago.... (Score:1)
That could be pretty rough... finding diamonds (Score:2)
Contrary to popular belief (Score:3, Informative)
Lucy? (Score:1)
Ian Van Dahl (Score:1)
You know what they say.. (Score:1)
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Diamonds... she'll pretty much have to.
For reference [youtube.com]
I can't believe I have to link to YouBube to find the example.
Twinkle twinkle little star... (Score:2, Funny)
Why bother (Score:2, Informative)
Diamonds Rare on Earth? (Score:1)