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03066nam a2200409 i 4500 |
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9781681742939 |
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IOP |
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20190318122523.0 |
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m eo d |
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cr cn |||m|||a |
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171118s2017 caua ob 000 0 eng d |
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|c 139868
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|a 9781681742939
|q ebook
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|a 9781681742953
|q mobi
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|z 9781681742922
|q print
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7 |
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|a 10.1088/978-1-6817-4293-9
|2 doi
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|a (CaBNVSL)thg00974972
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|a (OCoLC)1012426607
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|a CaBNVSL
|b gre
|e AACR2
|c GR-PaULI
|d GR-PaULI
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|a 523.88
|2 23
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|a Li, Hua-bai
|e συγγραφέας.
|9 174650
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|a The tai chi in star formation /
|c Hua-bai Li.
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|a San Rafael [Καλιφόρνια] :
|b Morgan & Claypool Publishers,
|c c2017.
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| 300 |
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|a 1 ηλεκτρονική πηγή (ποικίλες σελιδαριθμήσεις) :
|b εικ. (μερ. έγχρ.).
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| 490 |
1 |
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|a IOP concise physics,
|x 2053-2571
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|a Περιλαμβάνει βιβλιογραφικές παραπομπές.
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|a 1. Introduction -- 1.1. Magnetic fields -- 1.2. Turbulence -- 1.3. Turbulence versus B-fields -- 1.4. OK, so what about tai chi?
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|a 2. Magnetic fields -- 2.1. Magnetic flux freezing approximation -- 2.2. Magnetic critical mass -- 2.3. The tai chi between magnetic fields and gravity -- 2.4. Ambipolar diffusion--decoupling between gas and fields
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|a 3. Observations of magnetic fields -- 3.1. Field morphologies -- 3.2. Field strength
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|a 4. Observations of turbulence -- 4.1. Why we think clouds are turbulent -- 4.2. Turbulent critical mass -- 4.3. The tai chi between turbulence and gravity
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|a 5. Tai chi between gravity, turbulence, and the B-field -- 5.1. Critical densities -- 5.2. Cloud shapes and star formation rates -- 5.3. Turbulence ambipolar diffusion -- 5.4. Turbulent anisotropy -- 5.5. Summary.
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|a Tai Chi, a Chinese martial art developed based on the laws of nature, emphasises how 'to conquer the unyielding with the yielding'. The recent observation of star formation shows that stars result from the interaction between gravity, turbulence and magnetic fields. This interaction again follows the nature rules that inspired Tai Chi. For example, if self-gravity is the force that dominates, the molecular cloud will collapse isotropically, which compresses magnetic field lines. The density of the yielding field lines increases until magnetic pressure reaches the critical value to support the cloud against the gravitational force in directions perpendicular to the field lines (Lorentz force). Then gravity gives way to Lorentz force, accumulating gas only along the field lines till the gas density achieves the critical value to again compress the field lines. The Tai Chi goes on in a self-similar way.
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|a Άστρα
|x Δημιουργία
|9 174654
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|a Αστρονομία
|9 443
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| 830 |
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|a IOP concise physics.
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|u http://iopscience.iop.org/book/978-1-6817-4293-9
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|2 ddc
|c ERS
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