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Claës Fredrik Hornstedt
Claës Fredrik Hornstedt (12 February 1758 Linköping – May 1809 Helsinki) was a Swedish naturalist, taxonomist, botanical illustrator and a protégé of Carl Peter Thunberg. Hornstedt received a thorough education in natural history at the University of Uppsala. His 1781 dissertation dealt with plants collected in Japan by his teacher and mentor, Thunberg. At the invitation of Thunberg he set off in 1783 for Batavia, capital of the Dutch colonial empire, from Göteborg, boarding the “Sophia Magdalena”, a ship belonging to the Swedish East India Company. Supported by the Batavian Society of Arts and Sciences, he began collecting natural history specimens, mounted expeditions to the interior and neighbouring islands, and learnt the Malay language and Mandarin. His letters show a growing disaffection with the European way of life and its prodigality. He wore Chinese clothing, ate Chinese food and frequented the Chinese quarter. Hornstedt left Java in August 1784, suffering th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nova Genera Plantarum01a
A nova ( novae or novas) is a transient astronomical event that causes the sudden appearance of a bright, apparently "new" star (hence the name "nova", Latin for "new") that slowly fades over weeks or months. All observed novae involve white dwarfs in close binary star, binary systems, but causes of the dramatic appearance of a nova vary, depending on the circumstances of the two progenitor stars. The main sub-classes of novae are classical novae, recurrent novae (RNe), and dwarf novae. They are all considered to be cataclysmic variable stars. Classical nova eruptions are the most common type. This type is usually created in a close binary star system consisting of a white dwarf and either a main sequence, subgiant, or red giant star. If the orbital period of the system is a few days or less, the white dwarf is close enough to its companion star to draw accretion (astrophysics), accreted matter onto its surface, creating a dense but shallow Stellar atmosphere, atmosphere. This ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
