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A balloon is a flexible bag normally filled with air or gas. Some balloons are purely decorative, while others are used for specific purposes. Early balloons were made of dried animal bladders.
Large balloons filled with hot air or buoyant gas have been used as flying machines since the 18th century. See Balloon (aircraft) and Hot air balloon
These should not be confused with balloons in space, launched with a rocket.
Examples:
Party balloons are mostly made of natural latex rubber tapped from rubber trees grown in the amazon rain forest and can be filled with air, helium, waterDrinking water This article focuses on water as we experience it every day. The water (molecule) article describes water from a scientific and technical perspective. Water is an abundant substance on Earth. It exists in many forms, such as sea, rain, and, or any other suitable liquid or gas. The rubber makes the volume adjustable. If the balloon is blown up too much the balloon bursts with a bang. Rubbing a balloon produces a special sound that is very unpleasant for some people.
Filling with air is done with the mouth or with a pumpA pump is a mechanical device used to move liquids or gases. Also the heart is an essential pump in humans and animals to move the blood around. The earliest pump was described by Archimedes around 300 BC and is known as the Archimedes screw pump. Pumps w.
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 poreA pore in general, is some form of opening, usually very small. Pores can be found on many organisms, such as in plants, animals, and humans. More commonly, in talking about the skin, a pore is an opening that secretes sebaceous oil to lubricate and protes, and helium atoms being much smaller than the nitrogen and oxygen molecules in air, it escapes much quicker. Even a perfect rubber membrane eventually loses helium 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 migrates from a region of high concentration, through a barrier to a region of lower concentration is called osmosisOsmosis is the diffusion of a solvent through a semipermeable membrane from a region of low solute concentration to a region of high solute concentration. The semipermeable membrane is permeable to the solvent, but not to the solute, resulting in a chemic. 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 can safely be released into the environment as they are completely biodegradable.
Beginning in the early 1990sCenturies: 19th century 20th century 21st century Decades: 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s 2030s 2040s Years: Events and trends Computers, technology Explosive growth of the Internet; decrease in the cost of computers and other techn, some more expensive (and longer-lasting) helium balloons have been made of thin, unstretchable, impermeable metallized nylonNylon Density1150 kg/m3 Electrical conductivity(σ)10-12 (m· ohm)-1 Thermal conductivity0. 25 W/(m·K) Nylon is a synthetic polymer, a plastic, invented on February 28, 1935 by Wallace Carothers at the E. du Pont de Nemours and Company of Wilmington, films. These balloons are often, incorrectly, called MylarMylar is a trade name of DuPont Teijin Films of Hopewell, VA for biaxially-oriented polyethylene terephthalate (BOPET) polyester film used for its high tensile strength, chemical and dimensional stability, transparency, and electrical insulation. A variet® balloons. These balloons have attractive shiny reflective surfaces and are often printed with colour pictures and patterns. The most important attributes of Mylar® for balloons are its light weight, increasing buoyancy and its ability to keep the helium gas from escaping for several weeks. However, there has been some environmental concern, since the Mylar® does not biodegrade or shred as a rubber balloon does, and a helium balloon released into the atmosphere can travel a long way before finally bursting or deflating. Release of these types of balloons into the atmosphere is harmful to the environment and should never be allowed.
Partygoers sometimes entertain each other by untying a balloon and inhaling the helium. Because the speed of soundThis article is about compression waves. For other meanings, see sound (disambiguation Sound is a mechanical compression and rarefaction or a longitudinal displacement wave that propagates through a medium (solid, liquid or gas). The speed of this propaga in helium is about twice that in air, the helium causes the vocal tract to become more responsive to high-pitched sounds and less responsive to lower ones. The result is a voice that sounds high- pitched (and usually very funny).
Balloon artists are entertainers who twist and tie inflated tubular balloons into sculptures (see balloon animal). The balloons used for balloon sculpture are made of extra-stretchy rubber so that they can be twisted and tied without bursting. Since the pressure required to inflate a balloon is inversely proportional to the diameter of the balloon, these tiny tubular balloons are extremely hard to inflate initially. A pump is usually used to inflate these balloons.
Decorators may use dozens of helium balloons to create balloon sculpture. Usually the round shape of the balloon restricts these to simple arches or walls, but on occasion more ambitious "sculptures" have been attempted with great success. The balloon decorating industry is a widely diverse industry offering everything from simple balloon columns to stunning, very large and detailed sculptures.
Water balloons are thin, small rubber balloons intended to be easily broken. They are usually used by children, who throw them at each other, trying to get each other wet. (See practical joke.) A popular game with this idea is a water balloon toss, where two lines of people stand opposite each other and throw balloons back and forth. This continues until the balloons burst, showering whoever failed to catch it.