Notizen: Unterschied zwischen den Versionen
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| − | + | „Das Ganze ist mehr als die Summe seiner Teile.“ [http://de.wikipedia.org/wiki/Aristoteles Aristoteles] | |
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| − | Artensterben gestern und heute | + | Das '''Nichts''' ist die Summe aller Teile. (Gesamtenergie des Universums ist gleich Null). ''Rham (21 201 v. NZ): Die Geschichten der Universen.'' |
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| + | Artensterben gestern und heute: | ||
[http://www.sciencemag.org/cgi/content/abstract/329/5996/1191 The Shifting Balance of Diversity Among Major Marine Animal Groups] | [http://www.sciencemag.org/cgi/content/abstract/329/5996/1191 The Shifting Balance of Diversity Among Major Marine Animal Groups] | ||
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| − | Variations in fine-structure constant suggest laws of physics not the same everywhere | + | [http://www.physorg.com/news202921592.html Variations in fine-structure constant suggest laws of physics not the same everywhere] |
| − | + | (PhysOrg.com) -- One of the most controversial questions in cosmology is why the fundamental constants of nature seem fine-tuned for life. One of these fundamental constants is the fine-structure constant, or alpha, which is the coupling constant for the electromagnetic force and equal to about 1/137.0359. If alpha were just 4% bigger or smaller than it is, stars wouldn't be able to make carbon and oxygen, which would have made it impossible for life as we know it to exist. Now, results from a new study show that alpha seems to have varied a tiny bit in different directions of the universe billions of years ago, being slightly smaller in the northern hemisphere and slightly larger in the southern hemisphere. One intriguing possible implication is that the fine-structure constant is continuously varying in space, and seems fine-tuned for life in our neighborhood of the universe. | |
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| + | [http://www.nature.com/ncomms/journal/v2/n4/full/ncomms1263.html Quantum interference of large organic molecules] | ||
Aktuelle Version vom 17. Juni 2012, 13:33 Uhr
Notizen, Gedanken, ...
„Das Ganze ist mehr als die Summe seiner Teile.“ Aristoteles
Das Nichts ist die Summe aller Teile. (Gesamtenergie des Universums ist gleich Null). Rham (21 201 v. NZ): Die Geschichten der Universen.
Artensterben gestern und heute:
The Shifting Balance of Diversity Among Major Marine Animal Groups
Welcome to Sepkoski's Online Genus Database!
Die Erde erlebt gerade ein Massensterben der Arten
Variations in fine-structure constant suggest laws of physics not the same everywhere
(PhysOrg.com) -- One of the most controversial questions in cosmology is why the fundamental constants of nature seem fine-tuned for life. One of these fundamental constants is the fine-structure constant, or alpha, which is the coupling constant for the electromagnetic force and equal to about 1/137.0359. If alpha were just 4% bigger or smaller than it is, stars wouldn't be able to make carbon and oxygen, which would have made it impossible for life as we know it to exist. Now, results from a new study show that alpha seems to have varied a tiny bit in different directions of the universe billions of years ago, being slightly smaller in the northern hemisphere and slightly larger in the southern hemisphere. One intriguing possible implication is that the fine-structure constant is continuously varying in space, and seems fine-tuned for life in our neighborhood of the universe.
