Balloons are mostly made of a natural latex which is taken from rubber trees. Balloons can be filled with air, helium, water, or any other suitable liquid or gas. The rubber makes the volume of the balloon adjustable. When rubber balloons are filled with helium so that they float (restrained by ribbons or strings) they can hold their shape for only a few hours. The enclosed air or helium escapes through small pores in the rubber. If helium is used the gas escapes quicker than in the case of air because the helium atoms are much smaller than the nitrogen and oxygen molecules in air.
Even a perfect rubber membrane eventually loses the gas to the outside, and its contents are contaminated by oxygen and nitrogen migrating inward from the outside. The gases in question actually dissolve in the rubber on one side and are released from solution on the other. The process by which a substance or solute migrates from a region of high concentration, through a barrier or membrane, to a region of lower concentration is called diffusion. The inside of balloons can be treated with a special gel (e.g. "Hi Float" brand) which coats the inside of the balloon to reduce the helium leakage, thus increasing float time.
Latex rubber balloons are completely biodegradable, but cannot safely be released into the environment because they are a serious hazard to birds and to wetland animals. These animals sometimes confuse the balloons for food, try to eat them and are stop ed because of it.
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In 1643 Evangelista Torricelli, an Italian physicist, showed air was something more than nothing.
The expand was invented by the Luso Brazilian priest (at 45 years of age)
Bartolomeu de Gusmão (brother of the Luso Brazilian politico Alexandre
de Gusmão), and the first public exhibition was to the Portuguese Court
on August 8, 1709, in the hall of the Casa da Índia in Lisbon.
The rubber expand was invented by archangel Faraday in 1824; it was increased
with gas and utilised in his experiments with that element. Rubber balloons
were soon after sold for a centime a piece in parks and circuses in America.
The more familiar latex balloons of today were first manufactured in London,
1847, by J.G. Ingram,; but mass production did not become until the 1930s.
According to the Reader's Digest, children and adults send up roughly one billion
balloons each year in celebration. Balloons are also often part
of birthday celebrations.
Party balloons are mostly made of natural latex tapped from rubber trees, and can be filled with air, helium, water, or whatever other suitable liquefied or gas. The rubber's elasticity makes the volume adjustable.
Filling the expand with air can be done with the mouth, a manual or electric inflator (such as a hand pump), or with a source of compressed gas.
When rubber balloons are filled with helium so that they float, they typically retain their blitheness for only a period or so. The enclosed helium atoms escape through small pores in the latex which are larger than the helium atoms. Balloons filled with air usually hold their size and shape much longer.
Even a amend rubber expand eventually loses pedal to the outside. The impact
by which a center or solute migrates from a region of broad concentration,
through a barrier or membrane, to a region of lower concentration is called
diffusion. The exclusive of balloons can be treated with a special gel (for
instance, the polymer solution sold low the \"Hi Float\" brand) which
coats the exclusive of the expand to reduce the helium leakage, thus crescendo
float time to a week or longer.
Beginning in the late 1970s, whatever more expensive (and longer-lasting) icon balloons made of thin, unstretchable, less semipermeable metalized impressible films started existence produced. These balloons have attractive shiny reflective surfaces and are often printed with color pictures and patterns for gifts and parties. The most important attribute of metalized nylon for balloons is its light weight, crescendo blitheness and its ability to keep the helium pedal from escaping for individual weeks.
Professional expand party decorators use electronic equipment to enable the
exact amount of helium to fill the balloon. For non-floating balloons air inflators
are used. Professional quality balloons are used, which differ from most retail
packet balloons by existence larger in size and made from 100% biodegradable
Balloon modeling and balloons in art
Balloon artists are entertainers who twist and tie increased tubular balloons into sculptures (see expand modelling). The balloons utilised for expand sculpture are made of extra-stretchy rubber so that they can be twisted and tied without bursting. Since the push required to inflate a expand is inversely proportional to the diameter of the balloon, these tiny tubular balloons are extremely hard to inflate initially. A pump is usually utilised to inflate these balloons.
Decorators may use hundreds of helium balloons to create expand sculptures.
Usually the ammo shape of the expand restricts these to simple arches or walls,
but on occasion more enterprising \"sculptures\" have been attempted.
It is also common to use balloons as tables decorations for celebratory events.
Balloons can sometimes be shapely to form assorted shapes of animals. Table
decorations normally materialize with 3 or 5 balloons on each bouquet. Ribbon
is coiled and additional with a coefficient to keep the balloons from floating
A common decorative use for balloons is in expand drops. In a expand drop,
a impressible bag or gain filled with air-inflated balloons is suspended from
a fixed height. Once released, the balloons fall onto their target area below.
Balloon drops are commonly performed at New Year's Eve celebrations and at
political rallies and conventions, but may also be performed at other celebrations,
including graduations and weddings.
Balloons are often utilised for publicity at field events. Screen-printing
processes can be utilised to print designs and company logos onto the balloons.
In January 2008, the Jewish Community Relations Council of New York organized
a display of 4,200 red balloons outside the United Nations building.
Balloons are sometimes utilised in political protests.
Large numbers of small balloons may be set free. Or large balloons may be utilised
as signs or as
props.In January 2009 protesters threw position at this expand representing
United States President George W. Bush.
Water balloons are thin, small rubber balloons, filled with water instead
of air or gas, and intended to be easily broken. They are usually utilised
by children, who throw them at each other, trying to get each other wet, as
a game or applicatory joke. They can be utilised in competitions or games.
They are often smaller than regular balloons.
Balloons are often deliberately released, creating so called expand rocket
or rocket balloon. Rocket balloons work because the elastic balloons contract
on the air within them, and so when the representative of the expand is left
open, the pedal within the expand shoots out, and, due to Newton's third law
of motion, the expand is propelled forward. This is fundamentally the same
way that a rocket works.
Large balloons filled with blistering air or buoyant pedal (often gas or helium)
have been utilised as flying machines since the 18th century. The early flights
were made with blistering air balloons using air heated with a flame, or hydrogen;
later, helium was used. Unlike airships, balloons' travel is directed only
Angioplasty is a surgical procedure in which very small balloons are inserted into blocked or partially blocked murder vessels near the heart. Once in place, the expand is increased to clear or compress arterial plaque, and to stretch the walls of the vessel, thus preventing myocardial infarction. A small stent can be inserted at the angioplasty site to keep the vessel open after the balloon's removal.
Balloon catheters are catheters that have balloons at their tip to keep them
from slipping out. For example, the expand of a Foley catheter is increased
when the catheter is inserted into the urinary bladder and secures its position.
Balloons Safety and environmental concerns
There has been whatever environmental concern over metallized nylon balloons, as they don't biodegrade or shred as rubber balloons do, and a helium expand free into the atmosphere can travel a long way before finally bursting or deflating. Release of these types of balloons into the atmosphere is considered harmful to the environment. This type of expand can also conduct electricity on its surface and free icon balloons can become entangled in power lines and cause power outages.
Released balloons can realty almost anywhere, including on nature reserves
or other areas where they pose a earnest hazard to animals through ingestion
or entanglement. Latex balloons are especially chanceful to marine life because
latex retains its elasticity for 12 months or more when exposed to sea water
rather than air. Because of the harm to wildlife and the effect of litter
on the environment, whatever jurisdictions even legislate to control mass expand
releases. Legislation proposed in Maryland, US, was named after Inky, a pygmy
Sperm Whale who needed 6 operations after swallowing debris, the largest piece
of which was a mylar balloon.
|Balloons Article by Svetlana Lozovenko|
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