Grinding wheel

A grinding wheel is a wheel composed of an abrasive compound and used for various grinding (abrasive cutting) and abrasive machining operations. Such wheels are used in grinding machines.

The wheels are generally made from a composite material consisting of coarse-particle aggregate pressed and bonded together by a cementing matrix (called the bond in grinding wheel terminology) to form a solid, circular shape. Various profiles and cross sections are available depending on the intended usage for the wheel. They may also be made from a solid steel or aluminium disc with particles bonded to the surface. Today most grinding wheels are artificial composites made with artificial aggregates, but the history of grinding wheels began with natural composite stones, such as those used for millstones.

The manufacture of these wheels is a precise and tightly controlled process, due not only to the inherent safety risks of a spinning disc, but also the composition and uniformity required to prevent that disc from exploding due to the high stresses produced on rotation.

Universal (U.K. Subs album)

Universal is a studio album by the U.K. Subs released in 2002 on Captain Oi! Records.

Track listing

All songs written by Charlie Harper, except where noted.

Personnel

References

Universal (Orchestral Manoeuvres in the Dark album)

Universal is the tenth album by Orchestral Manoeuvres in the Dark, released in 1996. It features songwriting contributions from co-founder Paul Humphreys, who departed the band in 1989, and Karl Bartos (formerly of Kraftwerk). The album spawned the band's first Top 20 hit in the UK for over five years with the track "Walking on the Milky Way". However, follow-up single "Universal" and the album itself performed poorly and this lack of success prompted singer Andy McCluskey to disband the group. It would remain their final album for over a decade until the band's reunion.

Reception

Stephen Thomas Erlewine in AllMusic remarked: "Universal is a rote collection of synth-pop and dance-pop from OMD, demonstrating only a fraction of the sophisticated craft that made its predecessor Liberator enjoyable, and none of the adventurous spirit of their '80s records."

Track listing

All songs written and composed by Andy McCluskey, except where noted. 

Personnel

Universal Orlando

The Universal Orlando Resort, commonly known as Universal Orlando, is a theme park resort in Orlando, Florida. It is wholly owned by NBCUniversal and its affiliates. Universal Orlando is the largest property operated by Universal Parks & Resorts, is the largest resort in Orlando, Florida, and is the second-largest resort in Greater Orlando after Walt Disney World.

Over 1900 people work at Universal Orlando. Universal Orlando consists of two theme parks (Universal Studios Florida and Islands of Adventure), a night-time entertainment complex (Universal CityWalk Orlando), and four Loews Hotels (Loews Portofino Bay Hotel, Hard Rock Hotel, Loews Royal Pacific Resort, Cabana Bay Beach Resort).

History

Orthopedic cast

An orthopedic cast, body cast, plaster cast, or surgical cast, is a shell, frequently made from plaster or fiberglass, encasing a limb (or, in some cases, large portions of the body) to stabilize and hold anatomical structures, most often a broken bone (or bones), in place until healing is confirmed. It is similar in function to a splint.

Plaster bandages consist of a cotton bandage that has been combined with plaster of paris, which hardens after it has been made wet. Plaster of Paris is calcined gypsum (roasted gypsum), ground to a fine powder by milling. When water is added, the more soluble form of calcium sulfate returns to the relatively insoluble form, and heat is produced.

The setting of unmodified plaster starts about 10 minutes after mixing and is complete in about 45 minutes; however, the cast is not fully dry for 72 hours.

Nowadays bandages of synthetic materials are often used, often knitted fiberglass bandages impregnated with polyurethane, sometimes bandages of thermoplastic. These are lighter and dry much faster than plaster bandages. However, plaster can be more easily moulded to make a snug and therefore more comfortable fit. In addition, plaster is much smoother and does not snag clothing or abrade the skin.

Type conversion

In computer science, type conversion, typecasting, and coercion are different ways of, implicitly or explicitly, changing an entity of one data type into another. This is done to take advantage of certain features of type hierarchies or type representations. One example would be small integers, which can be stored in a compact format and converted to a larger representation when used in arithmetic computations. In object-oriented programming, type conversion allows programs to treat objects of one type as one of their ancestor types to simplify interacting with them.

Each programming language has its own rules on how types can be converted. In general, both objects and fundamental data types can be converted. In most languages, the word coercion is used to denote an implicit conversion, either during compilation or during run time. A typical example would be an expression mixing integer and floating point numbers (like 5 + 0.1), where the integers are normally converted into the latter. Explicit type conversions can either be performed via built-in routines (or a special syntax) or via separately defined conversion routines such as an overloaded object constructor.

Fossil

Fossils (from Classical Latin fossilis; literally, "obtained by digging") are the preserved remains or traces of animals, plants, and other organisms from the remote past. The totality of fossils, both discovered and undiscovered, and their placement in fossiliferous (fossil-containing) rock formations and sedimentary layers (strata) is known as the fossil record.

The study of fossils across geological time, how they were formed, and the evolutionary relationships between taxa (phylogeny) are some of the most important functions of the science of paleontology. Such a preserved specimen is called a "fossil" if it is older than some minimum age, most often the arbitrary date of 10,000 years. Hence, fossils range in age from the youngest at the start of the Holocene Epoch to the oldest, chemical fossils from the Archaean Eon, up to 3.48 billion years old, or even older, 4.1 billion years old, according to a 2015 study. The observation that certain fossils were associated with certain rock strata led early geologists to recognize a geological timescale in the 19th century. The development of radiometric dating techniques in the early 20th century allowed geologists to determine the numerical or "absolute" age of the various strata and thereby the included fossils.