Dynamite is an explosive based on the explosive potential of nitroglycerin, initially using diatomaceous earth (kieselgur: US Spelling; kieselguhr: UK Spelling) or another absorbent substance such as sawdust as an adsorbent. It was invented by Swedish chemist and engineer Alfred Nobel in 1866 in Krümmel (Geesthacht, Schleswig-Holstein, Germany); and patented in 1867. It is usually sold in the form of a stick 20 centimetres (roughly 8 in) long and 2.5 centimetres (1 in) in diameter, but… (More on Dynamite)