For English, check the original article here.

For Arabic, click here.

This article was originally published in English in issue #31 (December, 2016) of “Spokes”, the online magazine of Ecsite, the European network of science centers and museums, under the title: “In practice”; you can subscribe to Spokes for free here.

The article is reproduced here with the kind permission of Ecsite and the article’s author(s). The translation into Arabic was undertaken by NAMES, the North Africa and Middle East Science centers network, that takes responsibility for this translation.

This content in both English and Arabic cannot be reproduced in any form without the permission of the European network of science centers and museums (Ecsite).