Best Video/Co kdyby Země byla dutá? (What if the Earth were Hollow?)

{{Application:Wikilook Blog/Article
 * blog=Best Video
 * module=Article
 * author=Gaijin
 * publishingtimestamp=2012/09/14 17:00
 * title=Co kdyby Země byla dutá? (What if the Earth were Hollow?)
 * categories=Věda
 * leading=Co kdyby Země byla dutá?
 * text={{ Widget YouTube Advanced | id = jN-FfJKgis8 | width = 560 | height = 315 | language = cs_CZ }}

Reference
}}
 * comments=Collaboration, Disqus
 * channel=Riverlook
 * uuid_select=Yes
 * uuid=d85381e9-3e9f-44f7-a7af-a0fef1f81773