The Excitement Of Skydiving
Written by Cindee Ross on December 20, 2009 – 12:32 pm -There are three parachute training methods to choose from: tandem, static line and accelerated free-fall (AFF). Each of these training methods has their benefits and drawbacks. Finding a skydiving school with a good reputation should be a priority task on your list, after deciding which training method you want to pursue. This is not a hard thing to do with the internet, telephone book and local airports within easy reach. The next point to consider is cost because skydiving is one of the most expensive sports to learn. You will begin learning about skydiving in the classroom, and then when you are ready, you will go up in the plane.
The most popular parachute training method is probably the tandem jump because it is the quickest way to get you in the air. Skydiving in tandem with your instructor is perfect for first time jumpers because they can experience the thrill of skydiving without all the anxiety and danger of more intensive jumps. The training on the ground lasts around thirty minutes.
Tags: Parachute, Parachuting, skydive, skydiving
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Types of Parachutes
Written by admin on July 3, 2009 – 11:39 pm -In its basic sense, a parachute is neither made for travel and sports, it was created to increase safety while descending from a certain altitude. It is a medium to delay the pull of gravity from earth when deployed form higher altitude.
In short, it makes the dropping of an item, a person or equipment vertically or diagonally slower by reducing the amount of dragging force while maintaining a balance so that the item would remain safe until it reaches the ground. Early physicists have made use of this principle and newer develops in parachuting technology led to the creation of various types of parachutes.
Early types of parachutes
Parasol type- Though not strictly called parachutes, the parasols were commonly used by performers in China to create a slow falling effect onstage.
Conical parachute – Possibly the earliest form of parachute is the conical shaped-parachute which appeared during 1470s in Italy preceding the design conceptualized by Leonardo da Vinci. As an escape device, this type of parachute was intended to allow people to get safely on the ground from burning buildings. However, there are no written records whether this parachute was ever used for that purpose.
Pyramid Parachute – Another design by Leonardo da Vinci, this parachute was conceptualized in Milan during the early part of 1480. It was a canopy that is supported by light wood held by a square bottom frame.
Pack-style parachute – This is the predecessor of all parachutes that are stored in casings these days.
Round parachutes – A basic drag device, round parachute is used in various settings like medical missions, cargo applications and military operations. While being described commonly as round in shape, the parachute actually resembles a dome or a jellyfish. This has been among the most popular type however; present-day parachutists don’t normally use this kind of parachute.
Tags: 1470s, Bottom Frame, Burning Buildings, Canopy, Casings, Circulars, Escape Device, Flat Surfaces, Frame Pack, Jellyfish, Leonardo Da Vinci, Medical Missions, Military Operations, Parachute, Parasol, Parasols, Physicists, Predecessor, Square Bottom, Types Of Parachutes
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Parachute Science Projects
Written by admin on July 1, 2009 – 11:36 pm -Parachutes are a good way to learn about physics and aerodynamics. They are also fairly easy to make with the right materials. The materials can be made out of plastic bags, nylon fabrics from discarded tents, strings and an object that will serve as the payload.
The instructions are very easy and there many resources that you can find in the internet. This is why parachutes are common science projects.
There are many variations that can be done with a parachute. You can make different designs and make a few variations with your over all design to yield different results.
Parachute Projects
Parachutes work by slowing down the descent of a person or object in the atmosphere. They create drag or air resistance that slows down the descent while being pulled down by gravity. You can experiment with different designs but the easiest to make would be round shaped parachutes.
When an object falls down it has to push air molecules away. This causes the drag or air resistance that inflates parachutes. The amount of drag can be measured through the cross sectional area of the object. The canopy of a parachute has a large cross sectional area which results to more drag. This is what makes the falling object with a parachute slow down.
Tags: Air Molecules, Air Resistance, Canopy, Chute, Cross Sectional Area, Decent Speed, Different Designs, Different Materials, Gravity, Nylon Fabrics, Parachute, Parachutes, Payload, Payloads, Plastic Bags, Science Projects, Tents, Terminal Velocity, Variations, Weights
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