Friday the 13th


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A Friday occurring on the 13th day of any month is considered to be a day of bad luck in many superstitions around the globe. Similar superstitions exist in some other traditions. In Greece and Spain, for example, Tuesday the 13th takes the same role. The fear of Friday the 13th is called paraskavedekatriaphobia, paraskevidekatriaphobia or friggatriskaidekaphobia, a specialized form of triskaidekaphobia, a phobia (fear) of the number thirteen.

Origins

The origin of the Friday the 13th superstition has been linked to the belief that there were 13 people at The Last Supper of Jesus, who was crucified on Good Friday, but it probably originated in medieval times. It has also been linked to the fact that a lunisolar calendar must have 13 months in some years, while the solar Gregorian calendar and lunar Islamic calendar always have 12 months in a year. Another suggestion is that the belief originated in a Norse myth about twelve gods having a feast in Valhalla. The mischievous Loki gate-crashed the party as an uninvited 13th guest and arranged for Hod, the blind god of darkness, to throw a branch of mistletoe at Balder, the god of joy and gladness. Balder was killed instantly and the Earth was plunged into darkness and mourning as a result. Both the first and last explanations, however, seem more relevant to the superstition linked to having 13 people at the same table during a meal. There is also another theory that Friday the 13th of October 1307 was the day that Philip IV of France arrested nearly all of the French Knights Templar to get their money for the French treasury. One other note which predates all of the aforementioned is that the first Passover seems to have occurred on Friday the 13th. The death of the firstborns of Egypt occurred on a Shabbat on the 14th of Nisan in the evening. But the Jewish calendar counts days from sunset to sunset so this would have been Friday the 13th in terms of the gentile reckoning of the days. (Exodus 12:6)

Effects

Strangely, there is evidence to suggest that Friday the 13th is actually unlucky for some. Psychologists have found that some people are especially likely to have accidents or fall ill on Friday the 13th. This has been attributed to such people feeling a heightened state of anxiety on that day. The Stress Management Center and Phobia Institute in Asheville, North Carolina estimates that in the United States alone, $800 or $900 million is lost in business each Friday the 13th because some people will not travel or go to work. [1]

The date is also well-known in the motorcycle (biker) community: since 1981, motorcycle enthusiasts and vendors gather every Friday the 13th in Port Dover, Ontario, Canada. This tradition started on November 13, 1981 by Chris Simons as a gathering of approximately 25 friends. The event has grown substantially, with an estimated 100,000 people attending in August 2004, as well as music bands, vendors, a bike show, etc.

In the Spanish-speaking world, it is Tuesday the 13th (as well as Tuesdays in general) that brings bad luck; a proverb runs En martes, ni te cases ni te embarques (on Tuesday, neither get married nor start a journey).

Occurrence

The following months have a Friday the 13th (If a month begins on a Sunday there will always be a Friday the 13th in it):

This sequence, here given for 2001-2028, repeats every 28 years from 1901 to 2099. The months with a Friday the 13th are determined by the Dominical letter (G, F, GF, etc.) of the year. All months whose first day falls on a Sunday will contain a Friday the 13th.

Because the Gregorian Calendar 400-year cycle has a whole number of weeks, it is not possible for exactly 1 in 7 months to have a Friday the 13th. In fact, the 13th is more likely to be a Friday than any other day of the week.

Over any given 400-year cycle the 13th day of the month occurs 4800 times. The distribution of 13th day of the month is as follows:

  • Monday ( 685 or 14.27% ),
  • Tuesday ( 685 or 14.27% ),
  • Wednesday ( 687 or 14.31% ),
  • Thursday ( 684 or 14.25% ),
  • Friday ( 688 or 14.34% ),
  • Saturday ( 684 or 14.25% ),
  • Sunday ( 687 or 14.31% ).

This means the 13th day of the month is slightly more likely to occur on a Friday.

Famous People born or died on Friday 13th

Some famous people born on this day are: Samuel Beckett, Sir Joh Bjelke-Petersen, Peter Davison, Oliviero De Fabritiis, Eileen Farrell, Carol Lynley, Herbert Ross, and Georges Simenon.

Some famous people who died on this day are: Diamond Jim Brady, Benny Goodman, Hubert Humphrey, Martita Hunt, Ralph Kirkpatrick, Gerald Moore, Lily Pons, and Tupac Shakur.


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Some famous people who died on this day are: Diamond Jim Brady, Benny Goodman, Hubert Humphrey, Martita Hunt, Ralph Kirkpatrick, Gerald Moore, Lily Pons, and Tupac Shakur. The best wrist protection is soft enough to allow normal wrist motion, but is able to absorb loads for hyper extension of the wrist. Some famous people born on this day are: Samuel Beckett, Sir Joh Bjelke-Petersen, Peter Davison, Oliviero De Fabritiis, Eileen Farrell, Carol Lynley, Herbert Ross, and Georges Simenon. Shorts and rigid splints could cause severe forearm fractures. This means the 13th day of the month is slightly more likely to occur on a Friday. Be aware that wrist guards made for in-line are dangerous and not recomended. The distribution of 13th day of the month is as follows:. Snowboard-related injury accounts for 100,000 of the wrist fractures in the world each season.

Over any given 400-year cycle the 13th day of the month occurs 4800 times. Time not money will make a skilled, safe snowboarder. In fact, the 13th is more likely to be a Friday than any other day of the week. It is worthy of note that many of the worlds pros began on old equipment, riding on very small hills. Because the Gregorian Calendar 400-year cycle has a whole number of weeks, it is not possible for exactly 1 in 7 months to have a Friday the 13th. A professional lesson, or a day spent with a skilled friend is highly recomended. All months whose first day falls on a Sunday will contain a Friday the 13th. Beginners should start on very gentle slopes with soft snow conditions, even if they're a good alpine skier.

The months with a Friday the 13th are determined by the Dominical letter (G, F, GF, etc.) of the year. It is highly recomended that all riders wear a helmet. This sequence, here given for 2001-2028, repeats every 28 years from 1901 to 2099. Necessary safety measures must be taken. The following months have a Friday the 13th (If a month begins on a Sunday there will always be a Friday the 13th in it):. Beginners are in great danger during first hours of practice. In the Spanish-speaking world, it is Tuesday the 13th (as well as Tuesdays in general) that brings bad luck; a proverb runs En martes, ni te cases ni te embarques (on Tuesday, neither get married nor start a journey). Injuries for snowboarders are very common, especially for upperlimb: wrist, elbows and shoulders.

The event has grown substantially, with an estimated 100,000 people attending in August 2004, as well as music bands, vendors, a bike show, etc. This is obviously easier with a less biased stance, such as the "duck" stance. This tradition started on November 13, 1981 by Chris Simons as a gathering of approximately 25 friends. When a rider changes direction mid-run (for example a "regular" rider leads with their left foot), they are said to be riding "switch". The date is also well-known in the motorcycle (biker) community: since 1981, motorcycle enthusiasts and vendors gather every Friday the 13th in Port Dover, Ontario, Canada. The question of how much the bindings are angled depends on the rider's purpose and preference. [1]. However, personal preference and comfort are important with regard to this setting, so experimentation is recommended.

The Stress Management Center and Phobia Institute in Asheville, North Carolina estimates that in the United States alone, $800 or $900 million is lost in business each Friday the 13th because some people will not travel or go to work. The usual measurement is to position the bindings so that the feet are placed just wider than shoulder width apart. This has been attributed to such people feeling a heightened state of anxiety on that day. Obviously, the size of the rider has much to do with proper stance width. Psychologists have found that some people are especially likely to have accidents or fall ill on Friday the 13th. Stance width is important because it determines how the rider is balanced on the board. Strangely, there is evidence to suggest that Friday the 13th is actually unlucky for some. A good snowboarder should be equally skilled in riding both ways, even if they have a particular preference.

(Exodus 12:6). Most people have a natural stance determined by experimentation, and the two stances are roughly equally common. But the Jewish calendar counts days from sunset to sunset so this would have been Friday the 13th in terms of the gentile reckoning of the days. "Goofy" is just the opposite - the right foot leads and the left foot is at the back. The death of the firstborns of Egypt occurred on a Shabbat on the 14th of Nisan in the evening. A "regular" stance is one in which the rider's left foot is the front foot, while the right foot is the back foot. One other note which predates all of the aforementioned is that the first Passover seems to have occurred on Friday the 13th. There are two "stances" used by snowboarders.

There is also another theory that Friday the 13th of October 1307 was the day that Philip IV of France arrested nearly all of the French Knights Templar to get their money for the French treasury. This is most likely to happen when the rider removes the board at the top or the bottom of a run (or while on a chairlift, which could be dangerous). Both the first and last explanations, however, seem more relevant to the superstition linked to having 13 people at the same table during a meal. Nevertheless, most ski areas require the use of a "leash" that connects the snowboard to the rider's leg or boot, in case the snowboard manages to get away from its rider. Balder was killed instantly and the Earth was plunged into darkness and mourning as a result. Furthermore it reduces the dangerous prospect of a board hurtling downhill riderless, and the rider slipping downhill on his back with no means to maintain grip on a steep slope. The mischievous Loki gate-crashed the party as an uninvited 13th guest and arranged for Hod, the blind god of darkness, to throw a branch of mistletoe at Balder, the god of joy and gladness. Automatic release is not required in snowboarding, as the rider's legs are fixed in a static position and twisting of the knee joint cannot occur to the same extent.

Another suggestion is that the belief originated in a Norse myth about twelve gods having a feast in Valhalla. With skis, this mechanism is designed to protect from injuries (particularly to the knee) caused by skis torn in different directions. It has also been linked to the fact that a lunisolar calendar must have 13 months in some years, while the solar Gregorian calendar and lunar Islamic calendar always have 12 months in a year. Snowboard bindings, unlike ski bindings, do not automatically release upon impact or after falling over. The origin of the Friday the 13th superstition has been linked to the belief that there were 13 people at The Last Supper of Jesus, who was crucified on Good Friday, but it probably originated in medieval times. Strap-in, step-in, and hybrid bindings are used by most recreational riders and all freestyle riders. . There are several types of bindings.

The fear of Friday the 13th is called paraskavedekatriaphobia, paraskevidekatriaphobia or friggatriskaidekaphobia, a specialized form of triskaidekaphobia, a phobia (fear) of the number thirteen. The bindings are fixed to the board, and hold the booted feet in place using a variety of systems. In Greece and Spain, for example, Tuesday the 13th takes the same role. Though bindings are not strictly part of the snowboard, they are necessary for its use. Similar superstitions exist in some other traditions. Other boots, such as Sorel-style boots, may look like they would work with a snowboard, but are unsuitable for snowboarding. A Friday occurring on the 13th day of any month is considered to be a day of bad luck in many superstitions around the globe. Snowboard boots differ from other types of boots in that they provide internal support to transfer the rider's movements to the board.


. Hard boots have become less common and are generally only found in more specialist stores. Sunday ( 687 or 14.31% ). Hard boots are very similar to ski boots and provide greater stability, increased control and quicker responsiveness on the snowboard. Saturday ( 684 or 14.25% ),. Generally, hard boots are used for alpine carving and racing, whereas soft boots are used in freestyle and freeride. Friday ( 688 or 14.34% ),. Soft boots look similar to winter boots and have a relatively comfortable, flexible feel that provides the forgiveness necessary for landing jumps and balancing on rails.

Thursday ( 684 or 14.25% ),. Snowboard boots come in two main types, soft boots and hard boots. Wednesday ( 687 or 14.31% ),. Snowboard designs differ primarily in:. Tuesday ( 685 or 14.27% ),. The base of the board may also feature graphics, often designed to make the manufacturer recognisable in photos. Monday ( 685 or 14.27% ),. Snowboard topsheet graphics can be a highly personal statement and many riders spend many hours customizing the look of their boards.

The top of the board typically sports graphics designed by board makers to attract riders to their boards. The edges of the base are fitted with a steel edge, just a couple millimeters square, which helps the board grab the snow when tipped up on edge. The base (the side of the board that touches the snow) is covered with a plastic called p-tex, which is typically sintered to help it absorb wax, which helps it slide faster. The front or "nose" of the board is upturned, to help the board glide over uneven snow; the back or "tail" of the board may be more or less upturned to enable backwards (switch or switchstance) riding.

Most snowboards are constructed of a wood core and laminated with fiberglass. Snowboards come in several different styles, depending on the type of riding intended:. Many professionals still opt not to involve themselves in the Olympic event, citing dissatisfaction with rules and with the concept of Olympic Snowboarding itself. Despite this rivalry, it is their establishment which finally convinces the IOC to declare snowboarding a new Olympic discipline in 1995.

Later, the ISF (International Snowboard Federation) originated primarily due to dissatisfaction with the new ISA rules. Due to the need for universal contest regulations, the ISA (International Snowboard Association) was founded in 1994. The growing popularity of the sport is reflected by the history of snowboarding as an official sport: In 1985 the first World Cup is held in Zürs, Austria. This opinion was well expressed in Heckler Magazine's "Declaration of Independents Snowboarding, Skateboarding and Music: An Intersection of Cultures.".

Many snowboarders are disappointed with the over-commercialization and of the sport, having viewed it as a very personal expression of themselves, similar to skateboarding, art and music. Snowboarding is now coming to terms with its popularity. Ski companies are now absorbing many snowboard companies, creating their own and, arguably, designing skis which directly borrow technology and design from snowboards (see shaped skis and twin skis). Many ski companies reacted negatively to snowboarding during the sport's infancy.

In reaction, Transworld Snowboarding created a popular t-shirt called "Answers," which included the answers to many questions posed by skiers, including: "Yes I can stop." Many resorts did not initially allow snowboards and insisted on the use of superfluous leashes and were known to insist that riders prove their ability before being allowed on the hill. Snowboarding was seen as a fad. During the early years of the sport, snowboards and snowboarders were not widely respected by the ski industry and culture. Nowadays there are millions of snowboarders around the world and a multi-million dollar industry trying to satisfy their needs.

Since its early years, the snowboard has been improved steadily and has taken the world by storm. One of the most mentionable however is Bob patent from 1972, which he sold in 1990 to Jake Burton Carpenter, founder and owner of Burton Snowboards, today's largest manufacturer of snowboard-specific products. This process included different stages and individual ideas and resulted in several patents for snowboard-like constructions. The history of the snowboard starts in Utah, [1]U.S.A., where pioneers like Sherman Poppen, Dimitrije Milovich, Bob Webber, Jake Burton Carpenter, Tom Sims, Mike Olson, and Chuck Barfoot developed prototypes mainly inspired by surfboards in the 1970s.

. A snowboard is not to be confused with a monoboard. Analogous to a surfboard or skateboard for snow, snowboards are typically about a metre and a half long by about 30 centimetres wide, with metal edges and an upturned lip at each end. Attached to the rider's feet with bindings, it is ridden down snow-covered slopes or dry ski slopes without the use of ski poles.

A snowboard is a board ridden by a rider in the sport of snowboarding. ISBN 0-393-32692-0 michaelbarnett@iinet.net.au. Norton & Company. W.W.

The Snowboard Book: A Guide for All Boarders. Hart, Lowell (1997). Patent 5190311 -- Snowboard binding system. U.S.

Patent 3900204 -- Mono-ski. U.S. Patent 3378274 -- Surf-type snow ski. U.S.

This stance is becoming increasingly popular, and is the most resilient of the three. Duck stance: Useful for tricks by removing the forward bias altogether, the feet are angled equally outwards such as 15° and -15°. Alpine stance: Used primarily for racing, the leading foot may be anything up to 70° and the trailing foot generally 5° less. Forward stance: Suitable for most purposes, the leading foot is angled roughly 21° and the trailing foot at 6°.

Alpine snowboards tend to be longer and thinner with a much stiffer flex for greater edge hold and better carving performance. The stiff bindings and boots give much more control over the board and allow the board to be carved much more easily than with softer bindings. Extreme carvers and some Boarder Cross racers also use plate bindings. Plate - Plate bindings are used with hardboots on Alpine or racing snowboards.

This allows the rider to apply pressure and effect a "heelside" turn. The HyBak was originally designed by inventer Jeff Grell and built by Flite Snowboards. Highback - A stiff moulded support behind the heel and up the calf area. In 2004, K2 released the Cinch series, a similar hybrid binding; riders slip their foot in as they would a Flow binding, however rather than webbing, the foot is held down by straps which can then be micro-adjusted for superior fit and performance.

The rider's boot is held down by a webbing that covers most of the foot. An example is the Flow binding system which is similar to a strap-in binding, except that the foot enters the binding through the back (which then clips into place) rather than the top. Hybrid - There are also proprietary binding systems that seek to combine the convenience of step-in systems with the control levels attainable with strap-ins. Another problem is the formation of ice in the step-in mechanism, which may make it difficult to get in and out of the bindings.

While much more convenient than strap-ins, they are widely considered to be inferior because they do not provide as much of an immediate response from the rider's legs to the board. Popular (and incompatible) step-in systems include Burton, K2 Clicker, Rossignol and Switch. Step-ins use a technology similar to the clipless pedals in cycling, by allowing the binding to snap and engage stiff hardware on the rider's boots. Relative to strap-in bindings, step-in bindings use a stiffer shoe sole and boot to maintain responsiveness in compensation for the lack of over the foot restraining straps and (sometimes) lack of binding highback.

Step-in - In response to the inconvenience of strap-in bindings, step-ins were created to make entry easier for beginners, allow for fast ski-lift to slope transition, and appeal to the rental market. Such companies as Salomon, Rossignol, Bakoda, Tech Nine, Ride, Flux and Burton have created different models of cap straps. Cap Strap bindings are a recent modification that provide a very tight fit to the heel cup which makes excellent edge control. Also, because there are two points of pressure, the strap locations must be adjusted for each individual rider, making it more cumbersome for rental operations.

The downside for this is they take longer to put on, usually requiring the rider to sit in the snow and bend over to adjust the straps. They can be tightly ratcheted closed for a tight fit and good rider control of the board. The foot is held onto the board with two buckle straps - one strapped across the top of the toe area, and one across the ankle area. Strap-in - These are the earliest types of bindings, but perhaps still the most popular and technical. The rider wears a boot which has a thick but flexible sole, and padded uppers.

Boards designed for powder conditions exaggerate the differences even more for more floatation on the powder. Freeride and alpine boards, however, have a directional shape with a wider and longer nose. Tail/nose width - Many freestyle boards have equal nose/tail specs for equal performance either direction. There is no standard way to quantify snowboard stiffness, but novices tend to prefer softer flex, racers stiffer flex, and everyone else something in between.

Usually a softer flex makes turning easier while a harder flex makes the board more stable at high speed. Flex - The flexibility of a snowboard affects its handling and typically varies with the rider's weight. Shorter sidecut radii (tighter turns) are generally used for halfpipe riding while longer sidecut radii (wider turns) are used for freeride/alpine/racing riding. Most boards use a sidecut radius between 8-9 meters.

The curve has a radius that might be a short as 5 meters on a child's board or as large as 17 meters on a racer's board. This curve aids turning and affects the board's handling. Sidecut - The edges of the board are symmetrically curved concavely, so that the width at the tip and tail is greater than the center. This is termed "toe/heel-drag" and can be cured by choosing a wider board or by adjusting the stance angle.

Riders with larger feet may have problems with the toes or heels overhanging the side of the board. Most folks ride boards in the 24-25 cm range. Alpine boards are typically 18-21 cm wide, although they can be as narrow as 15 cm. Freestyle boards are up to 28 cm wide, to assist with balance.

Width - The width is typically measured at the waist of the board, since the nose and tail width varies with the sidecut and taper. Another factor riders consider when selecting a snowboard is the type of riding it will be used for, freestyle boards being shorter than all-mountain boards. The longer the board, the more stable it is at high speed, but also a bit tougher to control. Rather, snowboards correspond to the weight of the rider, and a board length should be selected so the rider falls in the middle of the manufacturer's weight range for that model and size.

It is a myth that the height of the rider dictates the length of the snowboard. Most people ride boards in the 140-165 cm range. Length - Boards for children are as short as 90 centimeters; boards for racers, or "alpine" riders, are as long as 215 cm. Freestyle (pipe): waisted, semi-stiff, medium length, soft boots, either twin-directional or directional, light, deep sidecuts.

Freestyle (rails): waisted, flexible, short, soft boots, twin-directional, light. These boards are made specifically for use in powder. Swallow-Tail: Generally a wider board that as a split running down it's tail, which gives it the general look of a swallow's tail. All-Mountain: waisted, varying flexes and lengths, soft boots, sometimes slightly directional, meant to perform well as a Freeride and Freestyle board.

Freeride: waisted, sometimes flexible, medium to long length, soft boots, directional. Racing/Alpine: long, stiff to very stiff, hard boots, slightly waisted, directional.