Let's say that you take a plastic 1-liter soda bottle, empty out the soft drink it contains, put the cap back on it (so you have a sealed bottle full of air), tie a string around it like you would a balloon, and dive down to the bottom of the deep end of a swimming pool with it. Since the bottle is full of air, you can imagine it will have a strong desire to rise to the surface. You can sit on the bottom of the pool with it, holding the string, and it will act just like a helium balloon does in air. If you let go of the string the bottle will quickly rise to the surface of the water.
The reason that this soda bottle "balloon" wants to rise in the water is because water is a fluid and the 1-liter bottle is displacing one liter of that fluid. The bottle and the air in it weigh perhaps an ounce at most (1 liter of air weighs about a gram, and the bottle is very light as well). The liter of water it displaces, however, weights about 1,000 grams (2.2 pounds or so). Because the weight of the bottle and its air is less than the weight of the water it displaces, the bottle floats. This is the law of buoyancy.
Another way is the way a hot air balloon works. Put a gas fire almost in the balloon. The fire puts really hot air in the balloon. The material the balloon is made of keeps the hot air in. the balloon rises because hot rises. the temperature must be a certain amount higher then the air out side depending on the load.
BALLOONS
Aeronautical Engineering is the study of the principles and engineering of flight. From Balloons up to Spacecraft.
Aerostat radar is a low-level surveillance system that uses aerostats (moored balloons) as radar platforms.
Thy are held up by gas that is lighter than air. The hgher you go, the less dense air gets and therefore the less the difference between the gas being used to hold the balloon aloft and the air outside. They can therefore only go so high. Also, most balloons are not pressurised therefore the people fying in them would pass out for lack of oxygen if they went much above 10,000feet
Lots of things were invented during the industrial revolution but here are a few: Steam engines Canals Factories Hot air balloons Vaccines Telephone
Hot Air Balloons work because of the hot air.The hot air rising stays in the balloon and carries it upward.
Government balloons are just like normal balloons except for the fact that they are used for government purposes. The government will use hot air balloons to transport military supplies, carry weapons, and to travel.
because of balloons and man mad
there are the ones that work and the ones that don't
This relationship between the temperature and volume of a gas, which became known as Charles' law, provides an explanation of how hot-air balloons work
there are many different types: hot air balloons, gas balloons, party balloons, weather balloons and many more complex types of balloons.
people put helium in the balloon because heileum burns easily so thats what the fire is for and thats how the balloons fly! Jacob rocks
Personalized birthday balloons can be found at Party City, Fast Balloons, Balloons Tomorrow, Zoom Balloon and 1-800-Balloons. Personalized balloons at Party City can range from $3.99 to $9.99.
The bell jar is an airtight space. When the rubber diaphragram is pulled the volume of the space increases and air rushes into fill it, therefore expanding the balloons. When the diaphragram is released the volume of the space dcreases and the air in the balloons is pushed out. The balloons deflate.
They don't. Try filing the balloons with mashed potatoes instead.
Heated air, like what you breath.
Generally, it is helium. Hydrogen could work, but that would be dangerous.