Big Bang Teory, page 2

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Big Bang Teory sent on April 08, 2015 (14:28) by Bal. 24 comments, 1158 views.

, 1/400 f/7.1, ISO 100, tripod.

Questo soffione riassume abbastanza bene alcune fasi del Big Bang. Nei primi istanti l'universo gonfiò moltissimo, ad una velocità ben maggiore di quella della luce, la così detta inflazione. Dopo 100 secondi le dimensioni dell'universo sono 1000 miliardi di chilometri e la temperatura e pressione del plasma è simile a quella esistente all'interno delle stelle. In tre minuti si forma il 25% di elio e il deuterio, poi la temperatura scende e si arresta la nucleosintesi. Nei seguenti 300.000 anni non succede altro, l'universo è oscuro, buio, poi la temperatura scende abbastanza da permettere il disaccoppiamento materia -radiazione e l'universo diventa trasparente e luminoso. In seguito si formeranno le megastelle, aventi una massa di oltre 200 masse solari, che vivendo pochissimo ed esplodendo come supernove riverseranno nello spazio elementi più pesanti, dei veri semi da cui poi nascerà la vita...

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user53936

sent on April 22, 2015 (23:40) | This comment has been automatically translated (show/hide original)

We had the same inspiration .... congratulations for the original cut, excellent definition and a beautiful light! :-)
Greetings, Silvia

Bal	sent on April 23, 2015 (7:19) \| This comment has been automatically translated (show/hide original) I thank you for the nice words: actually we had a similar inspiration ... 8-) Greetings, Antonio

Franco Buffalmano

sent on April 22, 2017 (23:04) | This comment has been automatically translated (show/hide original)

Bal Damn, I learned so much! The speed of light would not have imagined. : - / I put in the memory. With FB-really-

Bal	sent on April 22, 2017 (23:57) \| This comment has been automatically translated (show/hide original) I'm glad you enjoyed, both photo and caption. Best wishes, Bal

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Some comments may have been automatically translated with Microsoft Translator.