Parachute Science
We all know what parachutes are for. They are very to make as a
science project. However the science behind a parachute is not as easy as
you think. There are key factors that you have to consider. Experimenting
may take a bit of patience if you intend to study them
seriously.
They came in different sizes and designs. For a
parachute to able to work in real life, actually takes accuracy and extra
caution, after all lives are at risk.
Modern designs have come
along way compared to their earlier forms. The very first modern parachute
was invented in 1783 but there were also earlier forms. Several
individuals have dared to take the leapt to test their designs. Some were
successful but some lost their lives due to poor designs and
setbacks.
Science behind the parachute
The earlier forms
were made of fabric and wooden struts. Most of these were conical shaped.
At that time the parachute was only intended for entertainment. It was
later on conceived as an escape device two years after the modern
parachute was invented.
It was used to get off a hot air balloon.
Later developments lead to the use of silk, vented parachute and knapsack
parachutes. After successful jumps it was then used in the military during
World War I and II.
Nowadays it is more popularly used for extreme
sports such as skydiving. The main idea behind it is that the parachute
slows down a falling object. It does this by creating a drag or air
resistance. When the parachute canopy is deployed the air molecules move
farther out creating drag. The more drag that is created the slower the
object falls down.
The drag or air resistance depends on the
surface area of the object. Parachute canopies have large surface area
which creates enough drag for its passenger. Shapes also have an effect on
the efficiency of the parachute. Modern designs have rectangular or
tapered shapes.
Tapered parachutes are in parachute sports. They
have more fabric cells to enable more control and speed. Rectangular ones
on the other hand are used for recreation. The safer and more frequently
used in training programs for students.
Parachutes must also be
packed correctly for it to deploy properly. If the canopy deploys too
quickly it may rip and/or hurt the skydiver. The canopy may get tangled
with the lines or does not inflate. The lines may also break. Due to this
sliders were added in Ram air parachutes to slow down the opening of the
canopy.
Modern designs also have a rip cord and zero porosity
technology. The ripcord enables the parachute to deploy correctly and the
zero porosity prevents air from passing through the nylon
fabric.
There are variations to the modern design because of
parachute sports. BASE jumpers use a different design when compared to
paragliders. Different designs play a role in the efficiency of the
parachute.
All in all the efficiency of the parachute will depend
in the materials, design and how it is packed. Reserve parachutes are also
available when the main canopy fails. Let's just hope that it will deploy
correctly this time.
Parachutes are packed by their own skydivers
and reserves are packed by riggers. The science behind parachute is
important to make sure that you are informed on what is supposed to
happen.
Get expert advice about parachuting at http://www.articlefog.com/category-parachuting.htm.
Here you can find all information about parachutes,
powered parachutes,
parachuting,
parachure courses and many more.
Article Source: www.ArticleFog.com.
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