The fourth dimension simply explained : a collection of essays selected from those submitted to the Scientific American's prize competition 2026-02-15T15:23:15+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Manning, Henry Parker, 1859 (Dover Publications, 2005)