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- @X087@X05.@X0841@X03 FIRECRACKERS
-
- @X08A simple firecracker can be made from cardboard tubing and epoxy@X05.@X08
- The instructions are below@X05:@X08
-
- 1@X05)@X08 Cut a small piece of cardboard tubing from the tube you are using@X05.
- @X05"@X08Small@X05"@X08 means anything less than 4 times the diameter of the tube@X05.
-
- @X082@X05)@X08 Set the section of tubing down on a piece of wax paper@X05,@X08 and fill
- it with epoxy and the drying agent to a height of 3@X05/@X084 the diameter
- of the tubing@X05.@X08 Allow the epoxy to dry to maximum hardness, as
- specified on the package@X05.@X08
-
- 3@X05)@X08 When it is dry@X05,@X08 put a small hole in the middle of the tube@X05,@X08 and
- insert a desired length of fuse@X05.@X08
-
- 4@X05) @X08Fill the tube with any type of flame@X05-@X08sensitive explosive@X05.@X08 Flash
- powder@X05,@X08 pyrodex@X05,@X08 black powder@X05,@X08 potassium picrate@X05,@X08 lead azide@X05,@X08
- nitrocellulose@X05,@X08 or any of the fast burning fuel@X05-@X08oxodizer mixtures
- will do nicely@X05.@X08 Fill the tube almost to the top@X05.@X08
-
- @X085@X05) @X08Pack the explosive tightly in the tube with a wad of tissue paper
- and a pencil or other suitable ramrod@X05. @X08 Be sure to leave enough space
- for more epoxy@X05.
-
- @X086@X05) @X08Fill the remainder of the tube with the epoxy and hardener@X05,@X08 and allow
- it to dry@X05.
-
- @X087@X05) @X08For those who wish to make spectacular firecrackers@X05,@X08 always use
- flash powder@X05,@X08 mixed with a small amount of other material for
- colors@X05.@X08 By crushing the material on a sparkler@X05,@X08 and adding it
- to the flash powder@X05,@X08 the explosion will be the same color as the
- sparkler@X05.@X08 By adding small chunks of sparkler material@X05,@X08 the
- device will throw out colored burning sparks@X05,@X08 of the same color
- as the sparkler@X05.@X08 By adding powdered iron@X05,@X08 orange sparks will
- be produced@X05.@X08 White sparks can be produced from magnesium shavings@X05,
- @X08or from small@X05, @X03LIGHTLY @X08crumpled balls of aluminum foil@X05.
-
- @X03Example@X05: @X08 Suppose I wish to make a firecracker that will explode
- with a red flash@X05, @X08and throw out white sparks@X05. @X08 First@X05,
- @X08I would take a road flare, and finely powder the material
- inside it@X05.@X08 Or@X05,@X08 I could take a red sparkler@X05,@X08 and finely
- powder it@X05.@X08 Then@X05,@X08 I would mix a small amount of this
- material with the flash powder@X05. (@X03NOTE@X05: @X03FLASH POWDER
- MAY REACT WITH SOME MATERIALS THAT IT IS MIXED WITH@X05,@X03 AND
- EXPLODE SPONTANEOUSLY@X05!)@X08 I would mix it in a ratio of
- 9 parts flash powder to 1 part of flare or sparkler
- material@X05,@X08 and add about 15 small balls of aluminum foil
- I would store the material in a plastic bag overnight
- outside of the house@X05,@X08 to make sure that the stuff doesn@X05'@X08t
- react@X05.@X08 Then, in the morning@X05,@X08 I would test a small amount
- of it@X05,@X08 and if it was satisfactory@X05,@X08 I would put it in the
- firecracker@X05.
-
- @X088@X05) @X08If this type of firecracker is mounted on a rocket engine@X05,
- @X08professional to semi@X05-@X08professional displays can be produced@X05.
-