Stock Photo - Antoine Laurent Lavoisier, 18th century French chemist, investigating the existence of oxygen in the air, 1873. This was the experiment in which Lavoisier (1743-1794), regarded as the founder of the modern science of chemistry, obtained mercuric oxide. From The Atmosphere by Camille Flammarion. (London, 1873).

@ 0.007 --> Keywords launching task... @ 0.007 --> GetKeywords: Getting cache @ 0.020 --> _srcset calculated @ 0.055 --> begin dades json... @ 0.062 --> begin waiting GetItemsAsync... @ 0.062 --> GetKeywords: Request cached? True @ 0.077 --> itemsController.Get() completed! @ 0.087 --> pricing done @ 0.087 --> Dades JSON completed! @ 0.087 --> Keywords task start waiting @ 0.125 --> GetKeywords: File obtained @ 0.125 --> GetKeywords: File to Json @ 0.127 --> GetKeywords: DocLastUpdate checked @ 0.127 --> GetKeywords: Cached item @ 0.127 --> GetKeywords: keywords ampliacion @ 0.127 --> Keywords task completed @ 0.137 --> Schema completed @ 0.137 --> Adobe ads... @ 0.137 --> Adobe ads done @ 0.137 --> controller done