Stock Photo - Electric discharges in rarefied gases, 1892 2,3,4 and 6, Geissler tubes 1 Fluorescence of Sulphuret of calcium 4 Nitrogen Vacuum Spirals of Uranium Glass, 7, Hydrogen From ´The New Popular Educator´, London, 1892 Chromolithograph

@ 0.006 --> Keywords launching task... @ 0.006 --> GetKeywords: Getting cache @ 0.034 --> _srcset calculated @ 0.061 --> begin dades json... @ 0.071 --> begin waiting GetItemsAsync... @ 0.071 --> GetKeywords: Request cached? True @ 0.118 --> itemsController.Get() completed! @ 0.136 --> pricing done @ 0.137 --> Dades JSON completed! @ 0.137 --> Keywords task start waiting @ 0.159 --> GetKeywords: File obtained @ 0.159 --> GetKeywords: File to Json @ 0.160 --> GetKeywords: DocLastUpdate checked @ 0.160 --> GetKeywords: Cached item @ 0.162 --> GetKeywords: keywords ampliacion @ 0.162 --> Keywords task completed @ 0.178 --> Schema completed @ 0.178 --> Adobe ads... @ 0.178 --> Adobe ads done @ 0.178 --> controller done