Maxwell's equations, or Maxwell–Heaviside equations, are a set of coupled partial differential equations that, together with the Lorentz force law, form the foundation of classical electromagnetism, classical optics, and electric circuits. The equations provide a mathematical model for electric, optical, and radio technologies, such as power generation, electric motors, wireless communication, lenses, radar, etc. They describe how electric and magnetic fields are generated by charges, currents, and changes of the fields. The equations are named after the physicist and mathematician James Clerk Maxwell, who, in 1861 and 1862, published an early form of the equations that included the Lorentz force law. Maxwell first used the equations to propose that light is an electromagnetic phenomenon. The modern form of the equations in their most common formulation is credited to Oliver Heaviside.
The National Security Medal is a decoration of the United States of America officially established by President Harry S. Truman in Executive Order 10431 of January 19, 1953. The medal was originally awarded to any person, without regard to nationality, for distinguished achievement or outstanding contribution on or after July 26, 1947, in the field of intelligence relating to the national security of the United States.
Agricultural lime, also called aglime, agricultural limestone, garden lime or liming, is a soil additive made from pulverized limestone or chalk. The primary active component is calcium carbonate. Additional chemicals vary depending on the mineral source and may include calcium oxide. Unlike the types of lime called quicklime and slaked lime, powdered limestone does not require lime burning in a lime kiln; it only requires milling. All of these types of lime are sometimes used as soil conditioners, with a common theme of providing a base to correct acidity, but lime for farm fields today is often crushed limestone. Historically, liming of farm fields in centuries past was often done with burnt lime; the difference is at least partially explained by the fact that affordable mass-production-scale fine milling of stone and ore relies on technologies developed since the mid-19th century.
Horseshoe crabs are marine and brackish water arthropods of the family Limulidae and the only living members of the order Xiphosura. Despite their name, they are not true crabs or crustaceans: they are chelicerates, most closely related to arachnids such as spiders, ticks, and scorpions.
Xiphosura is an order of arthropods related to arachnids. They are more commonly known as horseshoe crabs. They first appeared in the Hirnantian. Currently, there are only four living species. Xiphosura contains one suborder, Xiphosurida, and several stem-genera.
Penychain railway station, formerly known as Butlins Penychain railway station, is located by an over bridge at Pen-ychain on the Llŷn Peninsula in Gwynedd, Wales. This railway station is an unstaffed halt on the Cambrian Coast Railway with passenger services to Pwllheli, Porthmadog, Harlech, Barmouth, Machynlleth and Shrewsbury. For many years the station served the large Butlins Holiday Camp at Penychain.
Diglyme, or bis(2-methoxyethyl) ether, is an organic compound with the chemical formula (CH3OCH2CH2)2O. It is a colorless liquid with a slight ether-like odor. It is a solvent with a high boiling point. It is the dimethyl ether of diethylene glycol. The name diglyme is a portmanteau of diglycol methyl ether. It is miscible with water as well as organic solvents.
Acute myeloblastic leukemia with maturation (M2) is a subtype of acute myeloid leukemia (AML).
The pen-tailed treeshrew is a treeshrew of the family Ptilocercidae native to southern Thailand, the Malay Peninsula, Borneo, and some Indonesian islands.
The T2 Laboratories explosion and fire occurred on December 19, 2007, in Jacksonville, Florida, resulting in the deaths of four people and the injury of fourteen others. T2 Laboratories Inc. was a facility that specialized in the design and manufacture of specialty chemicals primarily for gasoline additives.
The Sangguniang Panlungsod (SP) is the local legislative body of a city governments in the Philippines. The name of the legislative body comes from the Tagalog words "sanggunian" ("council") – ultimately from the rootword "sangguni" – and "lungsod" ("city"); "city council" is therefore often used as an equivalent term. Members of the city council are referred to as "kagawad"; while in Cebuano-speaking cities they are called "konsehal" (masc.) and "konsehala" (fem.), or "sehal".
Venganellur is a village in Thrissur district in the state of Kerala, India. Areas of Interests:Venganellur Sivakshethram is an ancient temple dedicated to Siva in the form of Thiruveembilappan under control of Cochin Devaswam Board, Trissur. Chakiar koothu is conducted regularly here in Medam month for 30 days. Ashtami in Vrishchikam and Shivarathri are the main festivals being celebrated at this temple. Thalikulam believed to be created by the foot step of Hanuman when he landed here while bringing Mrita sanjeevani to Lakshmanan. The 'Vela' of Venganellur Desam starts from here to Anthimahakalan Temple as part of the festival. NMLP School is the school which offers public instruction. The headquarters of Venganellur Service Cooperative Bank is at Venganellur.
Pottasch is a surname. Notable people with the surname include:
The Debate between Winter and Summer or Myth of Emesh and Enten is a Sumerian creation myth, written on clay tablets in the mid to late 3rd millennium BC.
Peter Rasmussen is a retired Danish professional football player in the midfielder position. He spent his entire 13-year career with Akademisk Boldklub (AB), winning the 1999 Danish Cup with the team. Rasmussen played 141 games and scored 15 goals in the Danish Superliga championship from 1996 to 2000.
Austrolimulidae is an extinct family of horseshoe crabs belonging to the infraorder Limulina. Members of the family are known from the Permian to the beginning of the Jurassic, though one species has been reported from the end of the Cretaceous. Austrolimulids are known for amongst the most extreme morphologies among Xiphosurids, including large elongated genal spines. Unlike living Limulids, Austrolimulids were likely adapted for freshwater and brackish environments. They are considered to be the sister group to Limulidae, the group that contains all modern horseshoe crabs.
Karin Margarita Frei is an Argentinean-Danish archaeological scientist. She is a research professor in archaeometry at the National Museum of Denmark in Copenhagen. She has developed new methodologies for using isotopes to trace human and animal mobility, including the high time-resolution tracing technique for human hair and finger nails as well as ancient wool.
Black Maria is a popular British card game of the Hearts group for three to six players. It is an elaboration of Black Lady, itself a development of the original American game of Hearts, the progenitor of the group. Black Maria is regarded as one of the best games for three players.
Amor on Pegasus in Wrocław, Poland, is a monument located in Nicolaus Copernicus Park, within the Old Town Promenade at Teatralna Street. The sculptor was Theodor von Gosen.
