How to Make a Powerful Rocket From Sparklers!

Rocket From Sparklers A sparkler is a type of hand-held firework that burns slowly while emitting colored flames, sparks, and other effects. Because they usually contain more than 50 milligrams of the same explosive powder found in firecrackers, they are illegal in some countries. How to Make a Powerful Rocket From Sparklers! A single sparkler may last for 30 seconds or

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