Diatomaceous earth, also known as diatomite, celite, or kieselgur, is a naturally occurring, soft, siliceous sedimentary rock that can be crumbled into a fine white to off-white powder. It has a parti
Diatomite rock sample from the Sisquoc Formation
Scanning electron micrograph of diatomaceous earth
c. 1900–1910 Diatomaceous earth pit at Neuohe
c. 1900–1910 a drying area: One firing pile is being prepared; another is under way.
Dynamite is an explosive made of nitroglycerin, sorbents, and stabilizers. It was invented by the Swedish chemist and engineer Alfred Nobel in Geesthacht, Northern Germany, and was patented in 1867. I
Diatomaceous earth
…and rubber, anti-block in plastic films, porous support for chemical catalysts, cat litter, activator in coagulation studies, stabilizing component of dynamite, thermal insulator, and soil for potted plants and trees as in the art of bonsai. It is also used in gas chromatography packed columns made with glass…
Preparation of dynamite during the construction of the Douglas Dam, 1942
"Nobels extradynamit" manufactured by Nobel's old company, Nitroglycerin Aktiebolaget
Women mixing dynamite at Nobel's Ardeer factory, 1897
Advertisement for the Ætna Explosives Company of New York, artwork by Edward Penfield