Make a pulse jet engine with a jam jar

Edited by David Collins, Eng, Inukshuk, Doug Collins and 1 other

Materials you will need:

  • Drill and drill bit
  • Rubbing Alcohol
  • Jam jar
  • Lighter

This Experiment Should Only be Performed Under the Supervision of a Professional

Steps

  1. 1
    Drill a hole 1 cm in diameter through the lid of the jam jar.
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  2. 2
    Use a ruler to measure your hole. Make sure the hole isn't too small!
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  3. 3
    It's important to note that this project should only be completed under adult supervision since we're dealing with flammable materials. Since there's a good change the glass jar could break during this experiment, I recommend making a small tray using cardboard and tinfoil.
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  4. 4
    Unscrew the cap on the jar, take the rubbing alcohol and pour some into the bottom of the jar. You should pour until you have about 1 to 2 cm (approximately the width of your thumb) of isopropyl alcohol in the bottom of the jar.
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  5. 5
    Carefully shake the jar covering the top hole, making sure you coat the inside of the jar with the rubbing alcohol.
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  6. 6
    Take your lighter and carefully light the top of the jar.
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  7. 7
    Between tries, you should blow some fresh air into the jar to prime the next pulse.
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  8. 8
    Remember to be safe, and enjoy!
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Video: Make a pulse jet engine with a jam jar

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Article Info

Categories : Arts & Crafts

Recent edits by: Doug Collins, Inukshuk, Eng

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