DIY Hot Air Balloons
Intro: DIY Hot Air Balloons
Hot air balloons have been around since 1782 and are a well known way of transportation or for just viewing the geographical features of our modern world. Hot air balloons are also the oldest human-carrying flight technology ever. The way these balloons work is that heat is released into the balloon, and due to the fact that heat rises while cold air descends, when the balloon is heated internally, it will lift into the air and gradually rise higher when the passengers heat the inside.
In this instructable, I will be showing you how to make your own mini hot air balloon from just a few, cheap household items.
As you view this instructable, you will not only learn how to build the hot air balloon, but also learn the technology behind hot air balloons. This is a great hands-on learning experience that I use to teach my science class.
In this instructable, I will be showing you how to make your own mini hot air balloon from just a few, cheap household items.
As you view this instructable, you will not only learn how to build the hot air balloon, but also learn the technology behind hot air balloons. This is a great hands-on learning experience that I use to teach my science class.
STEP 1: Materials
Materials needed:
1- Large Plastic Bag(I used a bag from the dry cleaners)
3-4 Birthday candles
1-Thick and sturdy wire
1-Aluminum foil
1-Glue gun
1-Lighter
And of course some patience:)
1- Large Plastic Bag(I used a bag from the dry cleaners)
3-4 Birthday candles
1-Thick and sturdy wire
1-Aluminum foil
1-Glue gun
1-Lighter
And of course some patience:)
STEP 2: Tie the Bag
First, Tie the bag in four evenly spaced spots by the opening of the bag
(see picture)
Then knot the top of the bag where the hole for the hangers is(only if you have a dry cleaners bag)
(see picture)
Then knot the top of the bag where the hole for the hangers is(only if you have a dry cleaners bag)
STEP 3: Cut and Bend Wire
Cut two pieces of wire that are about the same length as the knots on the bag that are diagonal from each other
Then, twist them together, forming an X shaped structure.
Then, twist them together, forming an X shaped structure.
STEP 4: Make the Candle Holder
Take the aluminum, and make a cup shaped structure to hold the candles.
STEP 5: Glue the Cup and Add Candles
Hot glue the cup to the middle of the x shaped structure
Then glue 3-4 candles to the inside of the cup.
Then glue 3-4 candles to the inside of the cup.
STEP 6: Attach to Bag
Carefully twist all 4 parts of the X shaped wire, to all 4 of the knots on the bag.
STEP 7: Ready to Fly!
Now here is where the fun begins!
Bring your hot air balloon to a calm, non windy area outside.
Then, make sure all areas of the bag arent touching or near the bag.
After that, light the candles on fire with the lighter and wait a while until the bag fills with hot air.
Finally when your bag is filled, let go of the bag and watch it rise in the air and get higher and higher.
These balloons have gotten so high, that I have even lost sight of them.
Try doing this at night for cool effects.
Be safe when doing this project, but most of all.... Have Fun!
Bring your hot air balloon to a calm, non windy area outside.
Then, make sure all areas of the bag arent touching or near the bag.
After that, light the candles on fire with the lighter and wait a while until the bag fills with hot air.
Finally when your bag is filled, let go of the bag and watch it rise in the air and get higher and higher.
These balloons have gotten so high, that I have even lost sight of them.
Try doing this at night for cool effects.
Be safe when doing this project, but most of all.... Have Fun!
30 Comments
243628 3 years ago
Chinuatl 3 years ago
jasonrp6 3 years ago
GregS261 6 years ago
I know go to Amazon look for Chinese sky lantern 100 percent biodegradable
Won't come down till it runs out of fuel . I saw 5 pack 6.45! And 2.99
This makes me happy that I found a answer so there is no FIGHTING!
omid shakeri 8 years ago
nice and easy! thanks
rajoferrer 8 years ago
Sorry
Build it and Fix it 12 years ago
TheScienceMan 12 years ago
Rishi Ramesh 9 years ago
Rishi Ramesh 9 years ago
harfbarf 9 years ago
This is very good design it's really cool
Kr. Saurav 11 years ago
It would also reduce the chances of melting.
Also, instead of the candles, you could soak some cotton in alcohol and burn it.
vincent7520 10 years ago
As for alcohol, I guess (but I may be wrong) that the heat produced is not as high as with candles …
nof-z 11 years ago
nof-z 11 years ago
jhawkins14 10 years ago
vincent7520 10 years ago
For instance : do NOT do this in a hot summer day when it has not been raining for 6 months and the land, grass, trees are dried up !!!
Do NOT do this in a Mediterranean pine forest !!!
Do NOT do this when there is a slight wind aiming to a gas station !!!
Do NOT do this near a marsh with dried reeds (this one I know 1st hand from when I was a kid in the 50's… and I still remember it …) !!!
Do NOT etc…
Still there are plenty situations and places where you can do this safely … Great Inst'…
Thanks for posting !…
KD8MSS 11 years ago
It was of course after a rain so nothing would catch fire if a balloon landed while the candles were burning.
hartmannsclass 12 years ago
spark master 12 years ago
you will find a number of sites like this one
http://www.solar-balloons.com/
If yu make a "smallish " one you can do an outer clear bag that has been inflated a bit and sealed, when the inner bag is inflated it will act as a double paned window and keeep in energy a tad longer (balloon in a balloon).
some cool foil makers on it will make it "visible" to radar, but I am not sure if this is good or bad.
if you can do it early in the day so you know you will get a long flight.