We show that the metaphor of the inflated balloon used to describe expanding space-time according to the Hubble law can be transformed into a simple laboratory experiment. We obtain, in terms of measured recession speeds and distances of ink dots drawn on a party balloon, easy renditions of various cosmological models, such as the static one and the Einstein–De Sitter universe.
The Hubble party balloon and the expanding universe / Oss, Stefano; Zendri, Giuliano; Rosi, Tommaso. - In: EUROPEAN JOURNAL OF PHYSICS. - ISSN 0143-0807. - STAMPA. - 2016, 37:5(2016), pp. 055701.1-055701.11. [10.1088/0143-0807/37/5/055701]
The Hubble party balloon and the expanding universe
Oss, Stefano;Zendri, Giuliano;Rosi, Tommaso
2016-01-01
Abstract
We show that the metaphor of the inflated balloon used to describe expanding space-time according to the Hubble law can be transformed into a simple laboratory experiment. We obtain, in terms of measured recession speeds and distances of ink dots drawn on a party balloon, easy renditions of various cosmological models, such as the static one and the Einstein–De Sitter universe.File in questo prodotto:
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