Hole punch - History

Definition and meaning of Blitzkreig:

Blitzkreig

Translated as "lightning war," blitzkreig was a German war tactic in World War II involving the concentration of air and armored firepower to punch and exploit holes in opposing defensive lines.

(Source: Madrid Waddington High School )

Also see these pages:  American History, American History Sitemap, History, History Sitemap

Definition and meaning of stenotele:

stenotele - a stinging nematocyst which contains a spirally coiled thread armed with spiral rows of projections. The triggered capsule, which is ejected from the cell, discharges its tubular content (shaft, stylets and tubule) by a process of evagination. In doing so, the three joined stylets punch a hole into the prey, through which the long evaginating tubule penetrates into the interior

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

Also see these pages: Oceanography, Oceanography Sitemap, Coral Reef, Environment, Sustainability, Climate Change,

A printed circuit board or PCB interconnects electronic components using conductive traces laminated onto a non-conductive substrate. Alternative names are printed wiring board or PWB or etched wiring board Printed circuit board - General characteristics. A printed circuit board consists of "etched conductors" attached to a sheet of insulator. The conductive pathways are called "traces" or "tracks". The insulator is called the substrate. The vast majority of 'pri ...

Including:

• Printed circuit board - General characteristics
• Printed circuit board - History
• Printed circuit board - Design
• Printed circuit board - Substrates
• Printed circuit board - Manufacture and population of conventional PCBs
• Printed circuit board - Protection and packaging
• Printed circuit board - 'Cordwood' construction
• Printed circuit board - Surface-mount technology

Read more here: » Printed circuit board: Encyclopedia - Printed circuit board

--199.185.88.18 18:31, 10 January 2006 (UTC)Insert formula here:For the 1994 Hong Kong film, see Wing Chun (film) Wing Chun (Chinese: 詠春; Hanyu Pinyin: yǒng chūn; Yale Cantonese: wing2 cheun1), also romanized Ving Tsun, is a system of Chinese martial arts with an emphasis on unarmed close-range fighting, although its curriculum includes weapons and techniques suitable for various ranges. Wing Chun - ...

Including:

• Wing Chun - History
• Wing Chun - Oral histories
• Wing Chun - Theories
• Wing Chun - The origins of Wing Chun's branches
• Wing Chun - Recent History
• Wing Chun - Notes
• Wing Chun - Curriculum
• Wing Chun - Forms
• Wing Chun - Chi Sao sticking hands
• Wing Chun - Wing Chun Kuen Kuit
• Wing Chun - Principles
• Wing Chun - Practicality
• Wing Chun - Efficiency
• Wing Chun - Economy of Movement
• Wing Chun - Characteristics
• Wing Chun - Balance and Structure
• Wing Chun - Relaxation
• Wing Chun - Centerline
• Wing Chun - The Wing Chun punch
• Wing Chun - Uncommitted techniques
• Wing Chun - Trapping Skills and Sensitivity
• Wing Chun - Close Range
• Wing Chun - Branches

Read more here: » Wing Chun: Encyclopedia - Wing Chun

On mail, a cancellation (or cancel for short) is a postal marking applied to a postage stamp or postal stationery indicating that the item has been used. Modern cancellations are often applied simultaneously with a postmark, for efficiency, and commonly the terms "cancellation" and "postmark" are used interchangeably, if incorrectly. (The confusion arises because of the practice of some postal administrations of applying the postmark directly on the stamp, at the cost of legibility.) The term "killer" is s ...

Including:

• Cancellation - History
• Cancellation - Types of cancels
• Cancellation - External link

Read more here: » Cancellation: Encyclopedia - Cancellation

Water polo is a team water sport, which can be best described as a combination of swimming, football (soccer), basketball, ice hockey, rugby and wrestling. A team consists of six field players and one goalkeeper. The goal of the game resembles that of football/soccer—to score as many goals as possible, each goal being worth one point. A perfect water polo athlete can be best described as having the over-arm accuracy of a baseball pitcher, the vertical of a volleyball player, the toughness of a hockey player, the endurance of ...

Including:

• Water polo - Basic skills needed for a Water Polo Player
• Water polo - Overview
• Water polo - Positions
• Water polo - Offense Strategy
• Water polo - Defense Strategy
• Water polo - History
• Water polo - Water Polo World Leading Teams for 2005

Read more here: » Water polo: Encyclopedia - Water polo

The American company UNIVAC began as the "business" computer division of Remington Rand formed by the purchase of the Eckert-Mauchly Computer Corporation in 1950. (EMCC was the company founded by, and named after, the two inventors/architects of the ENIAC.) UNIVAC is an acronym, standing for UNIVersal Automatic Computer. UNIVAC - History and structure. John Presper Eckert and John W. Mauchly built the ENIAC computer (Electronic Numerical Integrator and Calculator) at the Moore School of Engineering a ...

Including:

• UNIVAC - History and structure
• UNIVAC - Models
• UNIVAC - Operating Systems and the Romance of the Machine

Read more here: » UNIVAC: Encyclopedia - UNIVAC

A wire is a single, usually cylindrical, elongated strand of drawn metal. Wires are used to bear mechanical loads and to carry electricity and telecommunications signals. Standard sizes are determined by various wire gauges. The term wire is also used more loosely to refer to a bundle of such strands, as in 'multistranded wire'. Wire has many uses. It forms the raw material of many important manufacturers, such as the wire-net industry, wire-cloth making and wire-rope spinning, in which it occupies a place analogous to a ...

Including:

• Wire - History of wire production
• Wire - Drawing wire
• Wire - Finishing covering and insulating

Read more here: » Wire: Encyclopedia - Wire

Bodkin point arrows were invented in the Middle Ages, as an improvement of the earlier broadhead arrow. Broadhead arrows were used for hunting, as the sharp, wide cutting surface caused large wounds, that even if they did not kill the animal outright, would most likely make it bleed out in under a minute due to the cut tissue damage. The Bodkin point is simply a point. To the modern mind, it automatically appears to be designed for the penetration of armor. New information suggests that the Bodkin was not designed ...

Read more here: » Bodkin point: Encyclopedia - Bodkin point

Woodworking is the process of building, making or carving something using wood. Woodworking - History. Along with stone, mud, and animal parts, wood was certainly one of the first materials worked by primitive human beings. Indeed, the development of civilization was closely tied to the development of increasingly greater degrees of skill in working these materials. Among early finds of wooden tools are the worked sticks from Kalambo Falls, Clacton-on-Sea and Lehringen. The spears from Schöningen (G ...

Including:

• Woodworking - History
• Woodworking - Terminology
• Woodworking - Topics in Woodworking
• Woodworking - Woodworking Tools
• Woodworking - Measuring and marking tools
• Woodworking - Cutting tools
• Woodworking - Shaping tools
• Woodworking - Assembly tools
• Woodworking - Finishing tools
• Woodworking - Accessory tools and furniture
• Woodworking - Tool Sharpening
• Woodworking - Sharpening Paraphenalia
• Woodworking - Sharpening Methods
• Woodworking - Woodworkers

Read more here: » Woodworking: Encyclopedia - Woodworking

The U.S. presidential election of 2000 was one of the closest elections in U.S. history, decided by only 527 votes in the swing state of Florida. On election night, the media prematurely declared a winner twice based on exit polls before finally deciding that the Florida race was too close to call. It would turn out to be a month before the election was finally certified after numerous court challenges and recounts. Republican candidate George W. Bush won Florida's 25 electoral votes by a razor-thin margin of the popular ...

Including:

• U.S. presidential election 2000 - Introduction
• U.S. presidential election 2000 - Nominations
• U.S. presidential election 2000 - Democratic Party nomination
• U.S. presidential election 2000 - Republican Party nomination
• U.S. presidential election 2000 - Other nominations
• U.S. presidential election 2000 - General election
• U.S. presidential election 2000 - Campaign
• U.S. presidential election 2000 - Disputes
• U.S. presidential election 2000 - Results
• U.S. presidential election 2000 - Florida election results
• U.S. presidential election 2000 - Controversy in Florida
• U.S. presidential election 2000 - Palm Beach County's butterfly ballots
• U.S. presidential election 2000 - The Florida Ballot Project recounts
• U.S. presidential election 2000 - Response to the problems
• U.S. presidential election 2000 - Media post-electoral studies/recounts

Read more here: » U.S. presidential election 2000: Encyclopedia - U.S. presidential election 2000

An NPN bipolar transistor can be considered as two diodes connected anode to anode. In normal operation, the emitter-base junction is forward biased and the base-collector junction is reverse biased. In an npn-type transistor for example, electrons from the emitter wander (or "diffuse") into the base. These electrons in the base are in the minority and although there are plenty of holes with which to recombine, the base is always made very thin so that most of the electrons diffuse over to the collector before they recombine with holes. The ...

See also:

Bipolar junction transistor, Bipolar junction transistor - History and present applications, Bipolar junction transistor - Structure, Bipolar junction transistor - Basics of transistor operation, Bipolar junction transistor - Transistors in circuits, Bipolar junction transistor - Theory and modelling, Bipolar junction transistor - Base Width Modulation, Bipolar junction transistor - Punch Through, Bipolar junction transistor - Vulnerabilities of transistors

Read more here: » Bipolar junction transistor: Encyclopedia II - Bipolar junction transistor - Basics of transistor operation

A typical hole punch, whether a single or multiple hole punch, has a long lever which is used to push a bladed cylinder straight through a number of sheets of paper. As the vertical travel distance of the cylinder is only a few millimeters, it can be positioned within a centimeter of the lever fulcrum. For low volume hole punches, the resulting lever need not be more than 8 cm for sufficient force. Two paper guides are needed to line up the paper: one opposite where the paper is inserted, to set the margin distance, and one adjecent side. Hole punches for industrial volumes---hundreds of sheets---feature very long lever arms, ...

See also:

Hole punch, Hole punch - History, Hole punch - Mechanism, Hole punch - Uses of hole punches, Hole punch - Single hole punches, Hole punch - Multiple hole punches

Read more here: » Hole punch: Encyclopedia II - Hole punch - Mechanism

See also:

Wayang, Wayang - History of Wayang, Wayang - Wayang kulit, Wayang - Wayang topeng or wayang gedog or wayang wong, Wayang - Wayang golek or stick puppets, Wayang - Wayang karucil or wayang klitik, Wayang - Wayang beber, Wayang - Wayang Sadat, Wayang - Wayang Wahyu, Wayang - Notes

Read more here: » Wayang: Encyclopedia II - Wayang - Wayang golek or stick puppets

Other coding schemes, sizes of card, and hole shapes were tried at various times. Mark sense cards had printed ovals that humans would fill in with a pencil. Specialized card punches could detect these marks and punch the corresponding information into the card. There were also needle cards with all the punch positions perforated so data could be punched out manually, one hole at a time, with a device like a blunt pin with its wire bent into a finger-ring on the other end. In the early 1970s, IBM introduced a new, smaller, round-hole, 96-column card ...

See also:

Punch card, Punch card - Origins, Punch card - Functional details, Punch card - IBM punch card format, Punch card - Corner cut, Punch card - Pre-printed cards, Punch card - Key punches, Punch card - Other formats, Punch card - Advantages, Punch card - Obsolescence, Punch card - Dimpled and hanging chads

Read more here: » Punch card: Encyclopedia II - Punch card - Other formats

The 1880 census had taken seven years to tabulate, and by the time the figures were available, they were clearly obsolete. Due to rapid growth of the U.S. population from 1880 to 1890, primarily because of immigration, it was estimated that the 1890 census would take approximately thirteen years to complete —an immense logistical problem. As the U.S. government depended on the census figures to apportion taxation between the states and to determine Congressional ...

See also:

Tabulating machine, Tabulating machine - Census

Read more here: » Tabulating machine: Encyclopedia II - Tabulating machine - Census

The punched card predates computers considerably. As early as 1725 Basile Bouchon used perforated paper loop in a loom to establish the pattern to be reproduced on cloth, and in 1726 his co-worker Jean-Baptiste Falcon improved on his design by using perforated paper cards attached to one another, which made it easier to change the program quickly. The Bouchon-Falcon loom was semi-automatic and required manual feed of the program. Joseph Jacquard used punched cards in 1801 as a control device for the more automatic Jacquar ...

See also:

Punch card, Punch card - Origins, Punch card - Functional details, Punch card - IBM punch card format, Punch card - Corner cut, Punch card - Pre-printed cards, Punch card - Key punches, Punch card - Other formats, Punch card - Advantages, Punch card - Obsolescence, Punch card - Dimpled and hanging chads

Read more here: » Punch card: Encyclopedia II - Punch card - Origins

In its earliest uses, the punch card was not just a data recording medium, but a controlling element of the data processing operation. Electrical pulses produced when the read brushes passed through holes punched in the cards directly triggered electro-mechanical counters, relays, and solenoids. Cards were inexpensive and provided a permanent record of each transaction. Large organizations had w ...

See also:

Punch card, Punch card - Origins, Punch card - Functional details, Punch card - IBM punch card format, Punch card - Corner cut, Punch card - Pre-printed cards, Punch card - Key punches, Punch card - Other formats, Punch card - Advantages, Punch card - Obsolescence, Punch card - Dimpled and hanging chads

Read more here: » Punch card: Encyclopedia II - Punch card - Advantages

Data was entered on a machine called a keypunch, which was like a large, very noisy typewriter. Often the text was also printed at the top of the card, allowing humans to read the text as well. This was done using a machine called an interpreter. Later model keypunches could do this as well. Multi-character data, such as words or large numbers, was stored in adjacent card columns known as fields. For applications in which accuracy was critical, the practice was to have two different operators key the same data, with the ...

See also:

Punch card, Punch card - Origins, Punch card - Functional details, Punch card - IBM punch card format, Punch card - Corner cut, Punch card - Pre-printed cards, Punch card - Key punches, Punch card - Other formats, Punch card - Advantages, Punch card - Obsolescence, Punch card - Dimpled and hanging chads

Read more here: » Punch card: Encyclopedia II - Punch card - Key punches

Postage stamps were introduced in 1840 and thereafter immediately engendered a need to clearly indicate that the stamp had done its service. Many early cancellations were pen cancels, simply the use of a writing pen to deface the stamp, but before the days of ball-point pens, these took longer to apply than a handstamp, and most postal administrations required the use of cancellation devices, either supplied by the administration, handmade by the postmaster, or purchased from specialized suppliers. Handmade cancels were typical ...

See also:

Cancellation, Cancellation - History, Cancellation - Types of cancels, Cancellation - External link

Read more here: » Cancellation: Encyclopedia II - Cancellation - History