Illustration of simple hot air balloon-how to make a hot air balloon that can fly by hand

How to make a hot air balloon that can fly by hand

Handmade

To make a hot air balloon, the materials you need to prepare include: hydrogen balloon, cup, toothpick, scissors, Ribbon

1. First prepare a hydrogen balloon.

2. Then drill two holes in the paper cup.

3. Use both ends of the ribbon to pass through the hole in the paper cup and tie a knot to secure it.

4. Then tie the middle part of the ribbon to the inner hydrogen balloon.

5. Put toothpicks in the paper cup to increase the weight. At this time, the hydrogen balloon is falling on the table.

6. Slowly take out the appropriate amount of toothpicks, and the hydrogen balloon will slowly float in the air. The hand-made hot air balloon is completed.

The fuel usually used in hot air balloons is propane or

Liquefied petroleum gas

. The gas cylinder is fixed in the hanging basket. A hot air balloon can carry 80 Kilograms of liquid fuel. How to make a hot air balloon that can fly by hand

Step 1: Prepare an egg,

tweezers

and a small awl. Step 2: Use an awl to make a small opening on the top of the egg, about the diameter of your index finger. Step 3: Place the holed eggshell in a bowl, fill it with water, and heat it in the microwave for 90 seconds. Step 4: Take out the eggshell with holes, insert your index finger into the inside, and gently tap the outside with tweezers while flipping the eggshell over to make it crack. Step 5: Soak the cracked eggshell in white vinegar for 6 minutes to weaken the adhesion between the (

calcium carbonate

) eggshell and the inner membrane of the eggshell (protein) Spend. Let dry and peel off the egg shell little by little. Step 6: After peeling off the eggshell, only the ellipsoid-shaped inner membrane inside the eggshell is left. In this way, an "egg

hot air balloon

" is basically completed.

Note: The inner membrane of the egg must be intact, and a small amount of egg shell needs to be retained at the orifice. In this way, the center of gravity of the "balloon" can be appropriately moved downward to increase the number of eggs. Stability of balloon liftoff. Step 7: Use a mineral water bottle to make a "launching platform" and place the egg hot ball on top of the launching platform. Step 8: Place a candle (or a moxa stick for moxibustion, available on Taobao) below the launcher, ignite it, and heat it. The hot air makes the egg hot air balloon slowly rise into the sky. A hot air balloon is a balloon that uses hot air as the buoyant gas. There is a large opening and a hanging basket at the bottom of the air bag for heating by cold air. After taking off, control the amount of fuel injection from the blowtorch to control the balloon's ascent or descent. Hot air balloons appeared first, and now flying in hot air balloons has become a favorite aviation sport.

In addition, hot air balloons are also commonly used in aerial photography and aviation tourism.

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