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Alsomitra Macrocarpa
''Alsomitra macrocarpa'', commonly known as Javan cucumber, is a species of gourd-bearing liana belonging to the pumpkin family Cucurbitaceae. It is native to the tropical forests of Maritime Southeast Asia, as well as Thailand and New Guinea and its nearby islands. Taxonomy The plant was first described under the name ''Zanonia macrocarpa'' in 1825 by Carl Ludwig Blume from fruiting material collected on Mount Parang in Java. In 1843 Max Joseph Roemer published it under the name ''Alsomitra macrocarpa'', including 7 other ill-fitting species in the genus, a genus he did not define. In 1881 Alfred Cogniaux allocated the species to ''Macrozanonia macrocarpa''. The current accepted name is Roemer's ''Alsomitra macrocarpa''. Etymology The genus name ''Alsomitra'' is from the Latin for "grove mitre/fillet" and the species epithet ''macrocarpa'' means "large-fruited". Seed propagation The fruits or pepos are football-sized (about 300mm diameter) and bell-shaped, suspende ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Ludwig Blume
Charles Ludwig de Blume or Karl Ludwig von Blume (9 June 1796 – 3 February 1862) was a German-Dutch botanist and entomologist who spent most of his professional life in the Netherlands and the Dutch East Indies. As deputy director of agriculture at the Bogor Botanical Gardens in Java (1823–1826) and later director of the Rijksherbarium in Leiden, he conducted extensive studies of Southeast Asian flora, publishing numerous influential works including ''Bijdragen tot de flora van Nederlandsch Indië'' (1825–1827) and ''Rumphia'' (1835–1849). Together with Philipp Franz von Siebold, Blume co-founded the Royal Society for the Encouragement of Horticulture in the Netherlands in 1842, helping to revitalise the country's reputation as a centre for botanical study and exotic plant cultivation. His scientific contributions were recognised with his election as a foreign member of the Royal Swedish Academy of Sciences in 1855, and his legacy is commemorated in the botanical jou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phugoid
In aviation, a phugoid or fugoid () is an aircraft motion in which the vehicle Aircraft principal axes, pitches up and climbs, and then pitches down and descends, accompanied by speeding up and slowing down as it goes "downhill" and "uphill". This is one of the basic aircraft dynamic modes, flight dynamics modes of an fixed-wing aircraft, aircraft (others include short period, Aircraft_dynamic_modes#Roll_subsidence_mode, roll subsidence, dutch roll, and spiral divergence). Detailed description The phugoid has a nearly constant angle of attack but varying pitch (flight), pitch, caused by a repeated exchange of airspeed and altitude. It can be excited by an elevator (aircraft), elevator singlet (a short, sharp deflection followed by a return to the centered position) resulting in a pitch (flight), pitch increase with no change in trim tab, trim from the cruise (flight), cruise condition. As speed decays, the nose drops below the horizon. Speed increases, and the nose climbs above t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Thailand
''Flora of Thailand'' is a multi-volume flora describing the vascular plants of Thailand, published by the Forest Herbarium, Royal Forest Department since the 1970s. It currently consists of 12 volumes. Volumes *Volume 1 – not yet published *Volume 2(1-4) – Actinidiaceae, Apostasiaceae, Balanophoraceae, Bonnetiaceae, Cannabidaceae, Cardiopteridaceae, Casuarinaceae, Centrolepidaceae, Cephalotaxaceae, Connaraceae, Cupressaceae, Cycadaceae, Dilleniaceae, Ebenaceae, Elaeocarpaceae, Flagellariaceae, Gnetaceae, Goodeniaceae, Haloragaceae, Hanguanaceae, Hippocastanaceae, Icacinaceae, Illliciaceae, Irvingiaceae, Juncaceae, Lowiaceae, Magnoliaceae, Nyssaceae, Ochnaceae, Oxalidaceae, Pinaceae, Podocarpaceae, Portulacaceae, Rafflesiaceae, Restionaceae, Rhizophoraceae, Rosaceae, Saurauiaceae, Schisandraceae, Simaroubaceae, Smilacaceae, Sphenocleaceae, Stylidiaceae, Symplocaceae, Theaceae, Triuridaceae. *Volume 3(1) (1979) – Psilotaceae, Lycopodiaceae, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decorative Fruits And Seeds
Beauty is commonly described as a feature of objects that makes them pleasurable to perceive. Such objects include landscapes, sunsets, humans and works of art. Beauty, art and taste are the main subjects of aesthetics, one of the fields of study within philosophy. As a positive aesthetic value, it is contrasted with ugliness as its negative counterpart. One difficulty in understanding beauty is that it has both objective and subjective aspects: it is seen as a property of things but also as depending on the emotional response of observers. Because of its subjective side, beauty is said to be "in the eye of the beholder". It has been argued that the ability on the side of the subject needed to perceive and judge beauty, sometimes referred to as the "sense of taste", can be trained and that the verdicts of experts coincide in the long run. This suggests the standards of validity of judgments of beauty are intersubjective, i.e. dependent on a group of judges, rather than fully su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zanonia
''Zanonia'' is a monotypic genus in the flowering plant family Cucurbitaceae (the cucumber, squash, and pumpkin family). The only species is ''Zanonia indica'', a medium-sized liana found in the Indian Subcontinent and Southeast Asia east to New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; , fossilized , also known as Papua or historically ) is the List of islands by area, world's second-largest island, with an area of . Located in Melanesia in the southwestern Pacific Ocean, the island is .... It has a number of subspecies. At one time a number of '' Alsomitra'' species were classified among the ''Zanonia''. References External linksFlora of China - Cucurbitaceae * KBD: Kew Bibliographic Databases of Royal Botanic Gardens, Kew. Gourds afloat: a dated phylogeny reveals an Asian origin of the gourd family (Cucurbitaceae) and numerous oversea dispersal events Cucurbitaceae Monotypic Cucurbitaceae genera {{Cucurbitales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flying Wing
A flying wing is a tailless fixed-wing aircraft that has no definite fuselage, with its crew, payload, fuel, and equipment housed inside the main wing structure. A flying wing may have various small protuberances such as pods, nacelles, blisters, booms, or vertical stabilizers. Similar aircraft designs, that are not technically flying wings, are sometimes casually referred to as such. These types include blended wing body aircraft and lifting body aircraft, which have a fuselage and no definite wings. Whilst a pure flying wing is theoretically the lowest- drag design configuration for a fixed wing aircraft, a lack of conventional stabilizing surfaces and the associated control surfaces make them unstable and difficult to control. The basic flying wing configuration became an object of significant study during the 1920s, often in conjunction with other tailless designs. In the Second World War, both Nazi Germany and the Allies made advances in developing flying wings. Mili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Etrich Taube
The Etrich ''Taube'', also known by the names of the various later manufacturers who built versions of the type, such as the Rumpler ''Taube'', was a pre-World War I monoplane aircraft. It was the first military aeroplane to be mass-produced in Germany. The Taube was very popular prior to the First World War, and it was also used by the air forces of Italy and Austria-Hungary. Even the Royal Naval Air Service operated at least one Taube in 1912. On 1 November 1911, Giulio Gavotti, an Italian aviator, dropped the world's first aerial bomb from his Taube monoplane over the Ain Zara oasis in Libya. Once the war began, it quickly proved inadequate as a warplane and was soon replaced by other designs. Design and development The Taube was designed in 1909 by Igo Etrich of Austria-Hungary, and first flew in 1910. It was licensed for serial production by Lohner-Werke in Austria and by Edmund Rumpler in Germany, now called the ''Etrich-Rumpler-Taube''. Rumpler soon changed the name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environmental Monitoring
Environmental monitoring is the processes and activities that are done to characterize and describe the state of the environment. It is used in the preparation of environmental impact assessments, and in many circumstances in which human activities may cause harmful effects on the natural environment. Monitoring strategies and programmes are generally designed to establish the current status of an environment or to establish a baseline and trends in environmental parameters. The results of monitoring are usually reviewed, analyzed statistics, statistically, and published. A monitoring programme is designed around the intended use of the data before monitoring starts. Environmental monitoring includes monitoring of Air pollution, air quality, soils and water quality. Many monitoring programmes are designed to not only establish the current state of the environment but also predict future conditions. In some cases this may involve collecting data related to events in the distant p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Igo Etrich
Ignaz "Igo" Etrich (25 December 1879 – 4 February 1967) was an Austrians, Austrian flight pioneer, pilot and fixed-wing aircraft developer. Education Etrich was born on Christmas Day 1879 in the Upper Old Town of Trutnov, Kingdom of Bohemia, Bohemia. He attended school in Leipzig, where he came in contact with the works of Otto Lilienthal. His main interest was in aviation, the problems of bird flight. With his father, a factory-owner, he built a laboratory for developing aeroplanes. After the death of Lilienthal, Etrich's father acquired some advanced gliders. Aviation Prof. Ahlborn had published a paper in 1897, in which he had described the flying seed of ''Zanonia macrocarpa''. Etrich and his co-worker Franz Xaver Wels designed an unmanned glider of similar form and flew it successfully in 1904. Attempts to add an engine failed, but a successful manned glider was flown in 1906."The Evolution of the Etrich 'Taube'", ''Flight'' 12 February 1915, pp.106-10/ref> He also w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation
Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' include fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air aircraft such as hot air balloons and airships. Aviation began in the 18th century with the development of the hot air balloon, an apparatus capable of atmospheric displacement through buoyancy. Clément Ader built the "Ader Éole" in France and made an uncontrolled, powered hop in 1890. This was the first powered aircraft, although it did not achieve controlled flight. Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896. A major leap followed with the construction of the '' Wright Flyer'', the first powered airplane by the Wright brothers in the early 1900s. Since that time, aviation has been technologically revolutionized by the introduction of the jet engine which enabl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bract
In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in size, color, shape or texture. They also look different from the parts of the flower, such as the petals or sepals. A plant having bracts is referred to as bracteate or bracteolate, while one that lacks them is referred to as ebracteate or ebracteolate. Variants Some bracts are brightly coloured which aid in the attraction of pollinators, either together with the perianth or instead of it. Examples of this type of bract include those of '' Euphorbia pulcherrima'' (poinsettia) and '' Bougainvillea'': both of these have large colourful bracts surrounding much smaller, less colourful flowers. In grasses, each floret (flower) is enclosed in a pair of papery bracts, called the lemma (lower bract) and palea (upper bract), while each spikelet (group of florets) has a further pair o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Max Joseph Roemer
Max Joseph Roemer (1791, Munich – 1849) was a German botanist who worked in Weimar. Roemer served as ''Landrichter'' (country judge) in the Bavarian town of Aub before working as a private scientist in Würzburg. and is the taxonomic authority of the genera ''Heteromeles'', ''Pyracantha ''Pyracantha'' (from Greek "fire" and "thorn", hence firethorn) is a genus of large, thorny evergreen shrubs in the family Rosaceae, with common names firethorn or pyracantha. They are native to an area extending from Southwest Europe east to ...'', and '' Erythrocarpus'' as well as numerous plant species. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
