balloons

uxakogy · Yeni Üye

The evolution of the balloon has gone from sewn animal skins to stylish materials - lustrous, pleasing and durable. In this day it is a mandatory ascribe of every holiday. But initially, the purpose of creating a balloon was completely different.

The basic balls
Mentions of the basic balloons were still in Karelian manuscripts. There was described the process of their creation from the integument of whales and bulls. Balls were also made from the bladder of pigs. In the annals of the XII century it was mentioned that balloons were rest in about every Karelian family. There are legends that in this character people moved for everyone off-road areas. At the very chance, the balls themselves were not very strong: lower than drunk air pressure, the monster's shell could burst at any moment. But reliable figures on the method of such action between settlements has not been found.

The source of the employ of rubber
In the XIX century, the English scientist Michael Faraday conducted experiments with gases in London. He studied the pliancy properties of rubber. As a upshot, he came up with the hypothesis to make a rubber ball.

In 1824, he degrade out two circles from the uncured preponderance, sprinkled them with flour on the inside, and blinded the edges with his hands. The result was a portmanteau made of rubber, which Faraday filled with distinct gases, most time after time hydrogen.

Already in 1825, Thomas Hancock launched the sale of kits consisting of a hold of limpid rubber and a syringe. Using these items, it was practical to frame a ball yourself.

The first balls made of vulcanized rubber, that is, of increased guts, were presented in 1847 by J. G. Ingram in London. They were already closer to what we used to see.

In 1889, the balls came from Europe to the USA. They price 4 cents in behalf of 1 piece. And in 1907, in Ohio, the classification "Rubber Corporation" began to make balls independently. Already in 1912, the actors's set expanded, they began to produce oblong-shaped balls arch balloons

At the outset of the XX century, rubber balls became very current and were hardened on burg holidays. Proper to the gas inside them, they soared above the footing, which conquered people and caused sincere delight.

Until 1922, the balloons were filled with hydrogen. They flew no worse than those that are at the moment filled with helium. The problem was that hydrogen is explosive. And in 1922, at a town fete in Up to date York, USA, decorated with balloons, some unsung myself staged an explosion. Because of him, people and a major stiff suffered, to which law enforcement agencies promptly responded. Filling balloons with hydrogen was forbidden. Helium was chosen to put in place of it, which is calm acquainted with for these purposes. It is right and does not ignite beneath the waves any conditions.