NGC 4526

NGC 4526 is a lenticular galaxy located 55 million light-years from the Solar System in the Virgo constellation and discovered on 13 April 1784 by William Herschel. The galaxy is seen nearly edge-on; the morphological classification is SAB0°, which indicates a lenticular structure with a weak bar across the center and pure spiral arms without a ring. It is one of the brightest known lenticular galaxies. In the galaxy's outer halo, globular cluster orbital velocities indicate abnormal poverty of dark matter: only 43±18% of the mass within 5 effective radii; the inner nucleus of this galaxy displays a rise in stellar orbital motion that indicates the presence of a central dark mass. The best fit model for the motion of molecular gas in the core region suggests there is a supermassive black hole with about 4.5+4.2−3.0×108 times the mass of the Sun. This is the first object to have its black-hole mass estimated by measuring the rotation of gas molecules around its centre with an Astronomical interferometer.

Supernova SN 1969E was discovered in this galaxy in 1969, reaching a peak magnitude of 16. In 1994, a Type 1a supernova was discovered about two weeks before reaching peak brightness. Designated SN 1994D, it was caused by the explosion of a white dwarf star composed of carbon and oxygen. Black Eye Galaxy List of NGC objects Virgo NGC 4526 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Sky Map and images Lost Galaxy in Virgo SEDS


FreeMarker is a free Java-based template engine focusing on dynamic web page generation with MVC software architecture. However, it is a general purpose template engine, with no dependency on servlets or HTTP or HTML, is thus used for generating source code, configuration files or e-mails. FreeMarker had a somewhat hectic history until about 2004, caused by paradigm shifts and other significant changes on multiple occasions. FreeMarker 1 was written by Benjamin Geer and Mike Bayer. From 2002, the new project lead was Jonathan Revusky, who released FreeMarker 2, which started a sequence of several substantial changes; the main goal of the changes was to make the template language more strict, i.e. to detect as many of the typos and other typical mistakes as possible. Automatic object wrapping was introduced, along with gradual advancement of the type system of the template language; the language has gained many power-user features, such as more powerful macro programming capabilities and namespaces.

The language has reached a quite settled state with version 2.3, released in 2004 Q3. As of 2016, the product has remained backward compatible. No significant backward incompatible changes are expected in the FreeMarker 2 series in the future. In late 2015, FreeMarker was granted to the Apache Software Foundation, where it has entered the Apache Incubator, in 2018-03-21 it has become a accepted Apache project; the following template: processed by FreeMarker will produce something like: Variables like "name" and "messages" are coming from outside the template, thus the template author has to deal with the presentation issues only. The template remains the same regardless if these variables are coming from a database or from a cookie or calculated in whatever other ways; the exact Java API of the values can be hidden in FreeMarker using a technique called object wrapping. For example, "messages" seems to be a list or array of JavaBeans that have "from" and "body" properties, but it might as well be something different, the template is not affected.

JSP Apache Velocity Thymeleaf FreeMarker

Hopton, Derbyshire

Hopton is a small village adjacent to the village of Carsington and two miles away from the market town of Wirksworth in the Peak District. Evidence of humans visiting 200,000 years ago during a warm period known as the Aveley Interglacial, is given by the discovery of a Middle Paleolithic Acheulean hand axe nearby. Hopton is first mentioned in the Domesday book in 1086 as a Berewick of the town and manor of Wirksworth and its two main industries from ancient times have been farming and lead mining. Hopton lies just off the main B5035 road from Ashbourne to Wirksworth at the northern end of Carsington Water; the village had a long association with the Gell family, who have had assets in the Hopton since 1327, had extensive lead mining interests in the Wirksworth area and lived at Hopton Hall. Notable members include Sir John Gell, a Parliamentarian in the English Civil War and Sir William Gell, an archaeologist; the famous Hopton Incline of the Cromford and High Peak Railway, now part of the High Peak Trail and Pennine Bridleway, is about two-thirds of a mile north of the village.

Modern Hopton is a rather straggling village with a number of houses some of which are popular for self-catering activities for tourists visiting the Peak District and Carsington Water. Grid reference SK254533