It has been some time since I attempted to write up one of my little biographies. There is very little excuse for this other than I seem to be slower than I used to be, either that or things are happening faster. While I would like to believe the latter, I am afraid it is the former. Today I have chosen to try to learn a little about a man who set out to learn everything about everything. He has been described as the last great universal man. Born to a wealthy family, Baron Alexander von Humboldt, even as a young child, made quite remarkable collections of rocks, insects and flowers found on his family estate, Schloss Tegel, just outside of Berlin, Germany. He went to Göttingen University where he received his first formal training in physics, chemistry, geology and other sciences in which he developed a life-long interest. Following university and his coming into the family fortune he set out to do a naturalists exploration of South America, a journey which was to take about five years. Upon his return to his estate he wrote a number of books which are still held in esteem. A number of the URLs below are quite long, but, in my opinion, well worth the read. http://en.wikipedia.org/wiki/Alexander_von_Humboldt http://academic.emporia.edu/aberjame/histgeol/humboldt/humboldt.htm http://www.answers.com/topic/alexander-von-humboldt http://www.absoluteastronomy.com/topics/Alexander_von_Humboldt Baron Friedrich Wilhelm Heinrich Alexander| von Humboldt 1769-1859 German naturalist, geologist and explorer Biographical Information Friedrich Wilhelm Heinrich Alexander von Humboldt (1769-1859) was a naturalist, geologist and explorer. His father, a senior member of the Prussian military, wanted him to enter politics, but Humboldt preferred to study engineering. He did, however, live in political circles, and was a campaigner against racism and anti-semitism, and a recipient of the Prussian 'pour le mérite' order. Humboldt studied at Göttingen and Frankfurt-an-der-Oder universities during 1787-1792. He also spent time at the academy of commerce in Hamburg and the academy of mining in Freiburg, Saxony. Two results of his involvement in mines were his interest in geology and his invention of a number of mining safety devices, including a safety lamp. Humboldt attended the conference in Paris that verified the measurements of the meridian arc that were used to define the metric system. In 1799, despite the Napoleonic wars, which made travel difficult, Humboldt travelled to South America with botanist Aimé Bonpland, where he spent five years studying various natural phenomena including the correlation between volcanoes and fault lines, the Casiquiare river linking the Amazon to the Orinoco, variations in the Earths magnetic field near the equator, ocean currents (one of which is named in his honour) and the local flora and fauna. He returned via the United States, visiting president Thomas Jefferson (a keen amateur scientist) and being elected a member of the American Philosophical Society. He also set a new altitude record while climbing there, collected 60,000 plant specimens (6,300 unknown in Europe) during his voyage, and introduced the remarkable fertilising effects of Peruvian guano to Europe on his return. Once back in Europe, Humboldt conducted experiments on the constitution of the atmosphere with Gay-Lusson in Paris before eventually returning to Prussia, where he was appointed a diplomat. He spent much of his time as a diplomat in Paris, a sort of adopted second home for him since he had seen the early revolutionary days there in 1791. In 1829, Humboldt set off on another great voyage of exploration, this time to Siberia and Russian Asia, at the behest of Nicholas I, the czar of Russia. His magnum opus, 'Kosmos', is remarkable, because it was the first reasonably accurate encyclopaedia of geology and geography published. Amongst some of his other publications Humboldt also wrote 34 volumes of his travel journals and a history of mediaeval geography.