For rubber balloons filled with helium, one ball should be tied with a heavy object, and a large number of balloons should not be tied with the same heavy object. Because once the balloon flies away, it will not spread out, and it is easy to hang on the wire, or the wire will wrap around the animal after falling, causing harm.
It is mainly divided into the following categories: model airplane arch, hydrogen balloon, latex balloon, musical ball, lift-off ball, water polo, pearl ball, decorative prosperity ball, magic balloon, fluorescent ball, hot air balloon, balloon electronic Kongming lantern, nested ball, ball imitation beauty, long ball, detonating ball, threaded ball, luminous ball, helium ball and so on.
Extended data:
The invention of the balloon:
In the 2nd or 3rd century BC, China invented the earliest balloon sky lantern, which was used to transmit military signals. Hot air balloons have a long history in China. They are called sky lanterns or Kongming lanterns. Joseph Needham, a famous scholar, also pointed out that Mongols used dragon lanterns to transmit signals in the battle of Liezhnitz in 124 1 year.
On 1783, the French montague brothers released the first balloon filled with hot air in Europe. French brother Robert was the first person to fly into the sky in a balloon filled with hydrogen. Later, after 10 years of efforts, the Montgomery brothers finally sent a huge hot air balloon into the sky in 1783. When the king knew about it, he specially invited them to perform at Versailles.
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