Build a candle powered hot air balloon using painter's plastic, balsa wood, and birthday candles.
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Signing UpStep 1:
Cut the plastic and heat-seal the edges.
Layout your materials on a large sheet cardboard.
Pull out approximately 6 feet of the painter's plastic and cut it forming a sheet 9 x 6 ft. It's important to have plastic that is 1/2 mil (12 microns) or thinner. Thicker plastic is too heavy to fly.
Fold the sheet in half along the 9 ft side forming a two-ply sheet 4.5 x 6 ft. Use a hot knife to seal the two 4.5 ft edges. An electric hot knife makes this really easy, but it can also be done with an old metal knife heated over a flame.
Check your edges and correct any large holes. A few small holes won't cause problems.
Layout your materials on a large sheet cardboard.
Pull out approximately 6 feet of the painter's plastic and cut it forming a sheet 9 x 6 ft. It's important to have plastic that is 1/2 mil (12 microns) or thinner. Thicker plastic is too heavy to fly.
Fold the sheet in half along the 9 ft side forming a two-ply sheet 4.5 x 6 ft. Use a hot knife to seal the two 4.5 ft edges. An electric hot knife makes this really easy, but it can also be done with an old metal knife heated over a flame.
Check your edges and correct any large holes. A few small holes won't cause problems.
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I'm a High school student .I'm work About the physics of Paper (lanterns)hot air balloon
Please Help me for physics and make a Paper hot air balloon.
Especially About (physics of) Form this Paper hot air balloon.
We flew it on an almost windless day. It went up and drifted away.
I am glad it didn't start a fire in the woods.
Also we'll do them on a 'small' scale with swing bin liners.
If you substituted the candles for a VERY small weight, and used a non-attached hair-dryer as a heat source, you could have several on the go at once, with no fire hazard...not as fun without fire though...