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Filling a balloon with enough helium for flight takes a lot of helium, hot air balloons only use hot air because it only takes a couple of tanks of propane to heat the air, which is much more cost effective than filling the balloon with helium.

Airships use helium because they are used to stay in the air for extended periods of time, so it makes sense to pay for the helium to fill it once, rather than the propane to keep the air hot.

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15y ago

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Where can I get helium balloons filled?

You can get helium balloons filled at party supply stores, grocery stores, or stores that specialize in balloons and party decorations.


What are balloons that float filled with?

Helium


Is helium suitable for blowing up balloons?

Yes, balloons filled with helium will be buoyant in air


Why are balloons called balloons?

Balloons are not called helium; they can be filled with helium because this gas is not flammable and has a very low density.


Why do helium filled balloons float upwards but air filled balloons drop down?

bcoz helium is lighter than air


Why the balloons are called helium?

Balloons are not called helium; they can be filled with helium because this gas is not flammable and has a very low density.


What is helium mostly found in?

In helium balloons and blimps. Helium is lighter than air. So balloons or blimps filled with helium will float or rise up


What gas are balloons filled with to make them float?

Balloons are usually filled with helium gas to make them float. Helium is lighter than air and provides the necessary lift for the balloon to float.


When balloons are filled with this they are lighter tha air?

Helium.


How do the Macy's thanksgiving parade balloons float?

Those balloons are filled with helium gas. Helium is lighter than air. Helium is a noble gas.


How many balloons do you need to make a chihuahua fly?

258 helium filled balloons filled to 34 psi each


What is the difference between having helium in a balloon and having air in a balloon?

Helium is lighter than air, so a balloon filled with helium will float. In contrast, air-filled balloons will sink because the density of air is greater than that of helium. Additionally, helium balloons will deflate faster than air-filled balloons due to its smaller molecular size.

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