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Buckyballs Detected In Space
Rhodin writes "Fullerenes, also known as buckminsterfullerenes or 'buckyballs,' were detected about 6,500 light years from Earth in the cosmic dust of Tc 1 (PDF; abstract), an object known as a planetary nebula. 'We found what are now the largest molecules known to exist in space,' said astronomer Jan Cami of the University of Western Ontario, Canada, and the SETI Institute in Mountain View, Calif. 'We are particularly excited because they have unique properties that make them important players for all sorts of physical and chemical processes going on in space.'"
(More, below.)
These results hark directly back to the experiments that originally identified Buckminsterfullerene, which mimicked the outer atmospheric chemistry of red giant carbon stars. Harry Kroto, who jointly won a Nobel Prize for this discovery in 1996, is excited by the findings' clarity. 'The spectrum is incredibly convincing,' the Florida State University academic said. 'I thought I would never be as convinced as I am. The fact that the four lines are there, and C70 is there, is just unbelievable. It's a spectacular paper.'"
I thought the fact that these had to be explicitly manufactured and seemed to be a human-invented molecule meant that they'd never appear naturally in space.
Apparently there are no lab conditions on earth that are not duplicated somewhere else in the universe.
The molecular weight of cellulose in deep space might not surpass C70, but it *might* exceed C70... see one of the questions in this TED talk:
http://blog.ted.com/2009/10/qa_with_garik_i.php
and tell what they are at a distance that take light slightly longer than our recorded history as a species to travel.
Fuck yeah!
(That is all)
Aide-toi, le Ciel t'aidera - Jeanne D'Arc.
Actually, the C-60 has been known to exist (albeit in extremely limited number) in nature on earth. Fullerenes have later been found to exist also in very "short" chains, AFAIK down to like 20-30 atoms.
The real challenge is making stuff like tubing in desired lengths and thickness. Though the ball that is the C-60 is also very intresting, because like some of the molecular medical delivery systems invested recently, you may be able to contain smaller molecules within. This is very helpfull for nano weaponry and medicines, where all you'd need is a molecular glue that will attach (only) to your target, a container (like the buckyball) something within the container, and some sort of trigger, as presumably the fulerenes are very very stable.
--- To err is human... Am I more human than most ?
At least in space, nobody will be able to hear your vuvuzela.
There are several theoretical candidates for Dark Matter. Non-Baryonic Dark Matter (aka matter not made of quarks, protons, neutrons and not interacting with electrons and photons) is expected to contribute for the greater part to it. Fullerenes fall in the first category. Additionally, the observations of stars (gravitational interactions) are in accordance with the standard model and that pleads for the absence of Dark Matter in or around stars. However the cohesion or consistency of galaxies is not expectable if the only mass present in them comes from stars and stellar systems. That pleads for the presence of dark mater in the halo of galaxies and in clusters of galaxies.
Also not an expert. But if we eventually manage to find a molecule that can absorb energy without emitting it again in some form or other, that'd be pretty amazing from a chemistry standpoint. Our current undestanding of energy is that all energy input corresponds to a certain output. That is, energy may change form, but it may not cease to exist. this is generally also how we manage to identify molecules and objects, by measuring how they reflect radiation, or convert it to heat, mass etc.
But certainly a molecule that can absorb radiation without leaking it again, would revolutionize nuclear waste storage and facilities, where currently excess materials are encased in glass, then stainless steel, then put into storage for 6-800 years before the decay is sufficient for the material to be reused as nuclear fuel. Throughout those 6-800 years emission can be detrimetal to your health, a case that ensures 100% absorption of the radiation would be excellent !
That said, I doubt that is the case. I love the idea of it though. And I'm sure that in the future we will have a far better understanding of physics which will hopefully yield such bounties.
--- To err is human... Am I more human than most ?
It is possible that aliens will make conclusions about our development of semiconductors by looking for the signature of LEDs and lasers in our night side light emissions, but would be in the dark about our biology. Photons are a great invention.
In 1835, Auguste Comte, a prominent French philosopher, stated that humans would never be able to understand the chemical composition of stars. He was soon proved wrong. In the latter half of the 19th century, astronomers began to embrace two new techniques—spectroscopy and photography. Together they helped bring about a revolution in people's understanding of the cosmos. For the first time, scientists could investigate what the universe was made of. This was a major turning point in the development of cosmology, as astronomers were able to record and document not only where the stars were but what they were as well.
link
http://michaelsmith.id.au
Am I really that old?! Oh well...
May da schwartz be witcha.
it's just the farting of the Time Lords
rewriting history since 2109