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#2
nìNa'vi nì'aw / Re: Yafkeyk za'u fyape?
Last post by Toliman - Today at 05:20:30 AMQuote from: Toliman on April 26, 2024, 03:44:13 AMLu 25°C fìtrrQuote from: Toliman on April 24, 2024, 03:58:18 AMYafkeyk asang layu fìtsenge nìmun ye'rìnLu fìtseng
#3
nìNa'vi nì'aw / Re: Tìpängkxo Kìng
Last post by Toliman - Today at 05:19:57 AMKxì ma frapo Ayngaru lu sìltsana muntrr srak?
Ayngaru lu sìltsana muntrr srak? #4
Spam / Re: Make a Wish, Make it Usele...
Last post by Toliman - Today at 05:18:38 AMYou fall down 
I wish I could actually fly on a Ikran
I wish I could actually fly on a Ikran
#8
Science / Re: Astronomy thread/Kìng a te...
Last post by Toliman - Today at 05:12:11 AMSo small observation tonight, it was just some double stars, few globular clusters and the Moon. Nothing much but still nice
#9
Science / Re: Space news topic and space...
Last post by Toliman - Today at 05:09:51 AMBuckyballs in space: Weichman combines astrochemistry and spectroscopy to identify complex space molecules
https://www.princeton.edu/news/2024/04/22/buckyballs-space-weichman-combines-astrochemistry-and-spectroscopy-identify-complex
In research that has all the makings of a blockbuster movie — with interstellar chemistry, million-year timescales, and high-powered lasers — Princeton chemists are expanding our understanding of the composition of the universe.
Backed by a three-year grant from the National Science Foundation, researchers led by Princeton's Marissa Weichman will help identify new buckyball-like molecules, formed in space, which "drive the chemistry of planets and stars and galaxy formation," said Weichman, an assistant professor of chemistry.
"These are big, fundamental questions about where we come from and what kind of universe we live in," she said. These molecules are "the prebiotic origins of life, the seeds of molecules that start life. That's why we're looking at them."
Her lab has designed a device that measures the light absorption of particular kinds of molecules called fullerenes. These geodesic hollow "carbon cages" are the largest group of molecules identified in space so far, and they have already redefined our assumptions about molecular complexity in interstellar environments.
Weichman wants to take those assumptions to the next level.
As a postdoc five years ago, Weichman published a paper in Science on the simplest C60 fullerenes, colloquially called buckyballs. Now, using the signature spectrum of the buckyball as a benchmark, Weichman will target three similar molecules: bigger fullerenes; heterofullerenes, in which carbon atoms have been swapped out for other elements; and endofullerenes, which feature smaller molecules trapped inside the cage.
"Interstellar space is a really strange environment," Weichman said. "It's cold. It's really low-pressure. There are not many molecules in a given amount of space, and the molecules that do exist are constantly being irradiated by ultraviolet radiation and bombarded by cosmic particles. So, the chemistry that happens there is totally different from what happens on Earth."
The constant radiation bombardment, from particles blown out by supernovas across the galaxy, creates a hostile environment for molecules, she explained. "Fullerenes happen to be exceptionally stable and robust against fragmentation," she said. "They can last more or less forever in space. Understanding these species is really important for astrochemistry, and spectroscopy is how we detect that a specific given molecule is present."
https://www.princeton.edu/news/2024/04/22/buckyballs-space-weichman-combines-astrochemistry-and-spectroscopy-identify-complex
In research that has all the makings of a blockbuster movie — with interstellar chemistry, million-year timescales, and high-powered lasers — Princeton chemists are expanding our understanding of the composition of the universe.
Backed by a three-year grant from the National Science Foundation, researchers led by Princeton's Marissa Weichman will help identify new buckyball-like molecules, formed in space, which "drive the chemistry of planets and stars and galaxy formation," said Weichman, an assistant professor of chemistry.
"These are big, fundamental questions about where we come from and what kind of universe we live in," she said. These molecules are "the prebiotic origins of life, the seeds of molecules that start life. That's why we're looking at them."
Her lab has designed a device that measures the light absorption of particular kinds of molecules called fullerenes. These geodesic hollow "carbon cages" are the largest group of molecules identified in space so far, and they have already redefined our assumptions about molecular complexity in interstellar environments.
Weichman wants to take those assumptions to the next level.
As a postdoc five years ago, Weichman published a paper in Science on the simplest C60 fullerenes, colloquially called buckyballs. Now, using the signature spectrum of the buckyball as a benchmark, Weichman will target three similar molecules: bigger fullerenes; heterofullerenes, in which carbon atoms have been swapped out for other elements; and endofullerenes, which feature smaller molecules trapped inside the cage.
"Interstellar space is a really strange environment," Weichman said. "It's cold. It's really low-pressure. There are not many molecules in a given amount of space, and the molecules that do exist are constantly being irradiated by ultraviolet radiation and bombarded by cosmic particles. So, the chemistry that happens there is totally different from what happens on Earth."
The constant radiation bombardment, from particles blown out by supernovas across the galaxy, creates a hostile environment for molecules, she explained. "Fullerenes happen to be exceptionally stable and robust against fragmentation," she said. "They can last more or less forever in space. Understanding these species is really important for astrochemistry, and spectroscopy is how we detect that a specific given molecule is present."
#10
Spam / Re: Make a Wish, Make it Usele...
Last post by Kxanay - Today at 03:28:15 AMYou are, but you're not a very good wizard.
I wish I could actually fly on a broom.
I wish I could actually fly on a broom.
