Radar

Radar is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. A radar transmits radio waves or microwaves that reflect from any object in their path. A receive radar, which is typically the same system as the transmit radar, receives and processes these reflected waves to determine properties of the object(s).

Radar was secretly developed by several nations in the period before and during World War II. The term RADAR was coined in 1940 by the United States Navy as an acronym for RAdio Detection And Ranging. The term radar has since entered English and other languages as a common noun, losing all capitalization.

The modern uses of radar are highly diverse, including air and terrestrial traffic control, radar astronomy, air-defense systems, antimissile systems; marine radars to locate landmarks and other ships; aircraft anticollision systems; ocean surveillance systems, outer space surveillance and rendezvous systems; meteorological precipitation monitoring; altimetry and flight control systems; guided missile target locating systems; ground-penetrating radar for geological observations; and range-controlled radar for public health surveillance. High tech radar systems are associated with digital signal processing, machine learning and are capable of extracting useful information from very high noise levels.

Nacional Typefoundry

Fundición Tipográfica Nacional or the Nacional Typefoundry was for many years the leading type foundry of Spain. It was founded in Madrid in 1915 and functioned there until bought out by Fundición Tipográfica Neufville of Barcelona in 1971. It employed prestigious designers like Carlos Winkow and Enric Crous-Vidal and was noted for its bold and striking art deco faces.

Typefaces

References

Radar (disambiguation)

Radar is an acronym for RAdio Detection And Ranging.

Radar may also refer to:

RADAR acronym

Entertainment

People

Computing

Other uses

Velvet

Velvet is a type of woven tufted fabric in which the cut threads are evenly distributed, with a short dense pile, giving it a distinctive feel. By extension, the word velvety means "smooth like velvet." Velvet can be made from either synthetic or natural fibers.

Construction & composition

Velvet is woven on a special loom that weaves two thicknesses of the material at the same time. The two pieces are then cut apart to create the pile effect, and the two lengths of fabric are wound on separate take-up rolls. This complicated process meant that velvet was expensive to make before industrial power looms became available, and well-made velvet remains a fairly costly fabric. Velvet is difficult to clean because of its pile, but modern dry cleaning methods make cleaning more feasible. Velvet pile is created by warp or vertical yarns and velveteen pile is created by weft or fill yarns.

Velvet can be made from several different kinds of fibers, traditionally, the most expensive of which is silk. Much of the velvet sold today as "silk velvet" is actually a mix of rayon and silk. Velvet made entirely from silk is rare and usually has market prices of several hundred US dollars per yard. Cotton is also used to make velvet, though this often results in a less luxurious fabric. Velvet can also be made from fibers such as linen, mohair, and wool. A cloth made by the Kuba people of the Democratic Republic of Congo from raffia is often referred to as "Kuba velvet". More recently, synthetic velvets have been developed, mostly from polyester, nylon, viscose, acetate, and from either mixtures of different synthetics or from combined synthetics and natural fibers (for example viscose mixed with silk produces a very soft, reflective fabric). A small percentage of spandex is sometimes added to give the final material a certain amount of stretch (hence "stretch velvet").

Velvet (Sirius XM)

Velvet is a music channel that plays contemporary pop from vocalists like Adele, Andrea Bocelli, Sam Smith, Alicia Keys and Idina Menzel, it can be also heard on Sirius XM Radio 13 and Dish Network 6013.

Velvet was pre-empted to Holly on November 2, 2015, Sirius XM Love retained its normal format through December.

Velvet was an online-only channel.

Selected Artists Played

Adele
Alicia Keys
Sam Smith
Idina Menzel
Andrea Bocelli

See also

List of Sirius XM Radio channels

References

Velvet (bus company)

Black Velvet Travel Limited, trading as Velvet, was an English bus company based in Eastleigh, that operated between November 2007 and January 2015.

History

Velvet was established on 3 November 2007 by former Go South Coast manager Phil Stockley, and in January 2008 commenced running a temporary shuttle for Tesco staff.

On 25 February 2008, Velvet took over the running of Red Rocket A in Eastleigh, which was given up by previous operator Solent Blue Line as part of their network restructuring. Velvet gained a number of contracts to run other routes, as well as many new commercial ventures.

Since the start of 2014, Velvet had been withdrawing or reducing services following what is describes as 'a very difficult winter'. On 12 May 2014, Velvet surrendered the contract with Hampshire County Council to operate route 67 Winchester-West Meon-Petersfield, which moved on to Xelabus and Stagecoach South operation. All Barton Peveril College routes were transferred to Xelabus on 22 June 2014, along with the Eastleigh-Hedge End section of Velvet's A service. This followed the collapse of a deal in March 2014 which would have seen Xelabus take over the company.