Erwin

Erwin may refer to:

People

Given name

Surname

User Friendly

User Friendly is a daily webcomic about the staff of a small fictional Internet service provider, Columbia Internet. The strip's humor tends to be centered on technology jokes and geek humour.

Drawn and authored by J. D. Frazer, a.k.a. "Illiad", it has been running since November 17, 1997. Frazer is one of the few, and first, webcomic creators successful enough to make a living as an artist. This is probably because it is one of the first webcomics, and was targeted at a specific, tech-related audience, which was already abundant on the Internet at that time.

It is remarkable for having been updated daily from when it started in 1997 until June 2009 (most webcomics are updated only a few times a week), and for having all previous strips online in the archive.

When it is being updated there is a running storyline and sometimes several days' worth of comics are drawn in advance, but the Sunday comic is always drawn for immediate release and breaks from the regular storyline. The Sunday strip is based on current events and is in full color, unlike the regular daily strips.

Erwin, Tennessee

Erwin is a town in and the county seat of Unicoi County, Tennessee, United States. The population was 6,097 at the 2010 census. It is part of the Johnson City Metropolitan Statistical Area, which is a component of the Johnson City–Kingsport–Bristol, TN-VA Combined Statistical Area – commonly known as the "Tri-Cities" region.

History

The town of Erwin received its name by a mail mishap. On December 5, 1879, the name of the town was Ervin, in honor of D.J.N. Ervin, who had donated 15 acres (61,000 m²) of land for the county seat. A typo made by post office officials caused the name to be recorded as Erwin. The mistake was never corrected.

Erwin earned some notoriety in 1916 when the only known public execution of an elephant in Tennessee occurred in the community. Mary, the elephant, had killed her handler, Wallter Eldridge, in nearby Kingsport. As home to the region's largest railway yard, Erwin was the only community with the means to carry out the death sentence. An estimated 2,500 people turned out at the local railway yard to see Mary hoisted by a crane and hanged by a chain around her neck. The first chain snapped, but a larger one was found and the peculiar task completed - she was hanged for half an hour before being declared dead.

Pack

Pack or packs may refer to:

Places

People

Air cycle machine

An air cycle machine (ACM) is the refrigeration unit of the environmental control system (ECS) used in pressurized gas turbine-powered aircraft. Normally an aircraft has two or three of these ACM. Each ACM and its components are often referred as an air conditioning pack. The air cycle cooling process uses air instead of a phase changing material such as Freon in the gas cycle. No condensation or evaporation of a refrigerant is involved, and the cooled air output from the process is used directly for cabin ventilation or for cooling electronic equipment.

History

Air cycle machines were first developed in the 19th century for providing chilling on ships. The technique is a reverse Brayton cycle (the thermodynamic cycle of a gas turbine engine) and is also known as a Bell Coleman cycle or "Air-Standard Refrigeration Cycle".

Technical details

The usual compression, cooling and expansion seen in any refrigeration cycle is accomplished in the ACM by a centrifugal compressor, two air-to-air heat exchangers and an expansion turbine.

Playing card

A playing card is a piece of specially prepared heavy paper, thin cardboard, plastic-coated paper, cotton-paper blend, or thin plastic, marked with distinguishing motifs and used as one of a set for playing card games. Playing cards are typically palm-sized for convenient handling.

A complete set of cards is called a pack (UK English), deck (US English), or set (Universal), and the subset of cards held at one time by a player during a game is commonly called a hand. A pack of cards may be used for playing a variety of card games, with varying elements of skill and chance, some of which are played for money (e.g., poker and blackjack games at a casino). Playing cards are also used for illusions, cardistry, building card structures, cartomancy and memory sport.

The front (or "face") of each card carries markings that distinguish it from the other cards in the pack and determine its use under the rules of the game being played. The back of each card is identical for all cards in any particular pack to create an imperfect information scenario. Usually every card will be smooth; however, some packs have braille to allow blind people to read the card number and suit.