Hot Air Balloon Uses
March 16th, 2010 | 
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Hot Air Balloon Uses
Describe How Hot Air Balloons use the principe of buoyancy?
I cant figure this out. Please answer in a JR. High Science prospective.
If an object in water displaces a weight of water greater than the object itself, it will be buoyant. Same goes for an object in air. However in this case, hot air displaces cold air instead of some water tight (or air tight in this case) object. Once that difference in weight between hot and cold is greater than the weight of the balloon, buoyancy is achieved.
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Tournament Alpha [Round 1; Group VII] Hot Air Balloon. [Passed.
]How do you make an indoor hot air balloon?
i have tried making a mini hot air balloon with many bags. I used a candle or a blow drier for the heat source and i cant get the bag to get in the air. Any tips for doing it.
I used target bags, trash bags, and some other thin bags.
Also, if you have no clue what i am talking about then look at this
Dangerous to do inside, as the balloon gets very hot you just need a single ember to fly off the candle/wick and you will reenact the Hindenburg. I really think you should reconside doing this inside your house.....
How aor balloons generate the bouyancy for lift by heating air and having colder denser air out side. You balloon will be less effective inside a heated home than it would be outside on a cool morning or evening.
See the last link which details how to make a wick using disposable blue shop towels and canning wax. These are more effective than a simple candle as they generate a larger flame and heat source. If your using a typical wax stick candle its too heavy and only generates a small flame for its size.
With the larger flame you'll get hotter air in the bag, With these higher temps you will be more likely to have the bag melt. If is doesn't catch on fire first but melts your'll loose the hot air in the bag and the balloon will drop suddenly. Think what will happen if the lit wick suddenly falls onto something flamable or the partially melted balloon lands on the lit wick.
When you do this make sure to video tape it. That way you can sell it to "The Smoking Gun Presents - The Worlds Dumbest ____"
We could all use the laugh.
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Um… I'm just going to list some variations or the songs:
Berry-Avalance
On T-H-E Wing
FuzzyBlueLights
Early_Birdie
hOtAiRbAlLoOn
Or something along the lines or those. I like how they look.