Filling
Every toy balloon has an opening through which gases are blown into it. Balloons are usually filled by using one's breath, a pump, or a pressurized gas tank. The opening can then be tied off or clamped. Foil balloons are typically self-sealing. By filling a balloon with a gas lighter than air, such as helium, the balloon can be made to float. Helium is the preferred gas for floating balloons, because it is inert and will not catch fire (like hydrogen) or cause toxic effects when inhaled. Small, light objects (postcards, in balloon mail for example) are sometimes placed in balloons along with helium and released into the air and, when the balloon eventually falls, the object inside might be found by another person. Rubber balloons can also be filled with liquids (usually water) and can burst when they impact a solid object. Liquid-filled balloons are commonly referred to as water balloons or water bombs and used in playful fights, and sometimes vandalism.
Read more about this topic: Toy Balloon
Famous quotes containing the word filling:
“... how often the Presidency has simply meant that a man shall be abused, distrusted, and worked to death while he is filling the great office, and that he should drop into unmerited oblivion when he has left the White House ...”
—M. E. W. Sherwood (1826–1903)
“Make me thy Spinning Wheele of use for thee,
Thy Grace my Distaffe, and my heart thy Spoole.
Turn thou the wheele: let mine Affections bee
The flyer filling with thy yarne my soule.”
—Edward Taylor (1645–1729)
“If variety is capable of filling every hour of the married state with the highest joy, then might it be said that Lord and Lady Dellwyn were completely blessed, for every idea that had the power of raising pleasure in the bosom of the one, depressed that of the other with sorrow and affliction.”
—Sarah Fielding (1710–1768)