COMPLETE GUIDE TO DOWNHILL MOUNTAIN BIKING

Just click the below link and you'll be know the guide and skill for mountain biking.

http://www.bikeradar.com/fitness/article/complete-guide-to-downhill-mountain-biking-part-1-25183/

And feel free for watching these videos.

EQUIPMENT FOR DOWNHILL MOUNTAIN BIKING

Modern downhill bikes weigh between 14 and 19 kg (30 and 42 pounds), and usually feature full-suspension and frame geometries that lean back farther (slacker geometry) than other mountain bikes. As of 2006, 203 mm (8-inch) is the 'norm' for suspension travel however some commercially available big mountain freeride bikes can have over 300 mm (12-inch). Large-diameter 203–5 mm (8-inch) hydraulic disc brakes moderate speed. Downhill bikes and freeride bikes are similar but there are some slight differences. Downhill race bikes typically are much lower and have slacker head angles than freeride bikes, so that the bike is more stable at speed and in corners. Freeride bikes have a steeper geometry and a higher bottom bracket height, so that they are better for balance and maneuverability, however freeride bikes sometimes use single crown forks, which are shorter in travel length and lighter than the dual crown forks often used by downhill riders, dual crown forks usually have around 200 mm (8-inch) of travel, and single crown forks are usually around 180 mm (7 in) maximum.

1. Body Armor

2. Full Face helmet

3. Neck Brace 

-to reduce the risk (by bringing the head to a controlled stop) of neck and spinal injury.

4. Bicycle

DOWNHILL MOUNTAIN BIKE

Downhill biking (DH) is a time trial mountain biking event held on a course with a net decrease in elevation. As the name of this discipline implies, downhill races are held on steep, downhill terrain, resulting in high speed descents and, most commonly, with extended air time off jumps and other obstacles. A continuous course is defined on each side by a strip of tape. The width of the course can vary greatly over the length of the course, but it is typically between about 2m and 10m wide. Riders have one attempt to reach the finish line in the shortest amount of time while remaining between the tape. The rider must choose their path (or line) by compromising between the shortest possible line and the line that can be travel at the highest speed. If a rider leaves the course by crossing or breaking the tape, he must return to the course at the point of exit. Riders start at intervals, often seeded from slowest to fastest. Courses typically take two to five minutes to complete and winning margins are often less than a second. Riders are timed with equipment similar to that used in Downhill skiing.

SKYDIVING VIDEO,CHECK IT OUT!

    Hereby,i put a video about the skydiving and i hope you guys enjoy and you guys will try it one day,seriously,skydiving is cool!!! :)

HISTORY OF SKYDIVING

The sport was further refined throughout the 1800s, and many militaries adopted it in the 1900s.In the military, skydiving was originally intended to be a backup safety mechanism for airmen. If a plane became disabled during flight, the pilot could deploy a parachute to save his life. Intrepid pilots began to skydive recreationally as well, and in many countries, further applications were considered. Many modern militaries use skydiving for troop deployment, for example. Wildfire fighters also skydive to reach remote sites, so that they can be on the ground quickly.

The potential of skydiving as a recreational sport was also quickly realized. Both women and men participated in the development and refinement of it as a sport, and continue to do so. Sport skydiving is characterized by performing with a sense of flair as well as safety. These people also perform stunts in films and for product promotions. Group skydiving is also often performed as a sport, as is wingsuit flying, a variation that uses a specially designed flight suitto more closely mimic the sense of flying.

Several safety measures are taken to make skydiving as safe as possible. Skydivers regularly check their gear to ensure that it is in good shape, and most skydivers carry a backup parachute. In some cases, the backup will deploy automatically if a skydiver reaches a certain altitude. Both primary and backup parachutes are controlled with steering lines, allowing the skydiver to control his or her descent. Internationally, several organizations promote safe skydiving, offering classes and certifications in the sport.

For people who want to experience skydiving for themselves, numerous companies around the world offer opportunities. In general, people take tandem jumps their first few times out, so that they can learn the basics before taking over on their own. Good training also involves ground schooling as well, to make sure that the skydiver is safe, secure, and ready for a solo. Some companies also offer standalone skydiving experiences for people who just want to try it out.

http://www.folkeryden.com/about/skydiving/

WHAT IS SKYDIVING

Skydiving is a sport in which participants jump or fall from aircraft at altitude. They can perform an assortment of aerial maneuvers before deploying a parachute to slow their descent, allowing them to come gently to rest on the Earth below. The sport is also known as parachuting, in a reference to that vital piece of safety equipment. People at different levels of physical fitness can participate in skydiving, as long as they are ready for an adrenalin-packed sport which can be both terrifying and exhilarating.

The roots of the sport are actually much older than many people realize. Several medieval inventors developed rudimentary equipment which could have potentially been used for skydiving activity, and in 1797, Andre Jacques Garnerin jumped from a hot air balloon with a parachute, marking the first incident of truly modern skydiving

http://houston.about.com/od/outaboutphotos/ig/National-Skydiving-Competition/shannon-pilcher.htm

Variation of Bungee Jumping

Trampoline

"Bungy Trampoline" uses, as its name suggests, elements from bungy and trampolining. The participant begins on a trampoline and is fitted into a body harness, which is attached via bungy cords to two high poles on either side of the trampoline. As they begin to jump, the bungy cords are tightened, allowing a higher jump than could normally be made from a trampoline alone.

   
                                                         

Catapult

In "Catapult" (Reverse Bungee or Bungee Rocket) the 'jumper' starts on the ground. The jumper is secured and the cord stretched, then released and shooting the jumper up into the air. This is often achieved using either a crane or a hoist attached to a (semi-)perma structure. This simplifies the action of stretching the cord and later lowering the participant to the ground.

Twin Tower

• "Twin Tower" is similar with two oblique cords. There are two towers, each with a cord leading the jumper. When the cords are stretched the jumper is released and shoots straight up.

http://www.altitudeevents.org/Bungee_Run.html

Running

• "Bungee Running" involves no jumping as such. It merely consists of, as the name suggests, running along a track (often inflatable) with a bungee cord attached. One often has a velcro-backed marker that marks how far the runner got before the bungee cord pulled back. This activity can often be found at fairs and carnivals and is often most popular with children.

                     

                                           http://www.sportkc.org/sportkc.aspx?pgID=1269

Ramp

• Bungee jumping off a ramp. Two rubber cords - the "bungees" - are tied around the participant's waist to a harness. Those bungee cords are linked to steel cables along which they can slide due to stainless pulleys. The participants bicycle, sled or ski before jump.

• SCAD diving is similar to bungee jumping in that participant is dropped from a height, but in this variation there is not a cord, instead the participant falls into a net.

              

BUNGEE JUMPING

History of Bungee Jumping 

The word "bungee" originates from West Country dialect of English language, meaning "Anything thick and squat", as defined by James Jennings in his book "Observations of Some of the Dialects in The West of England" published 1825. Around 1930, the name became used for a rubber eraser. The word bungy, as used by A J Hackett, is "Kiwi slang for an Elastic Strap". Cloth-covered rubber cords with hooks on the ends have been available for decades under the generic name bungy cords.

In the 1950s, David Attenborough and a BBC film crew brought back footage of the "land divers" (Sa: Naghol) of Pentecost Island in Vanuatu, young men who jumped from tall wooden platforms with vines tied to their ankles as a test of their courage and passage into manhood.A similar practice, only with a much slower pace for falling, has been practised as the Danza de los Voladores de Papantla or the 'Papantla flyers' of central Mexico, a tradition dating back to the days of the Aztecs.

A tower 4,000 feet (1,200 m) high with a system to drop a “car” suspended by a cable of “best rubber” was proposed for the Chicago World Fair, 1892-1893. The car, seating two hundred people, would be shoved from a platform on the tower and then bounce to a stop. The designer engineer suggested that for safety the ground below “be covered with eight feet of feather bedding”. The proposal was declined by the Fair’s organizers.