When you ’re task with invading a bastioned palace , the easiest direction to defeat your foes is to burn their habitation from the inside out . And while we ’ve suffer some of the medieval acquisition mastered by our ancestors , it turns out that creating your ownself - wake fire arrowsisn’t that difficult thanks to modern engineering .
Specifically , all you ’ll need to incur is a hefty clump of steel wool , and a run - of - the - mill nine - V battery . The sword wool tie to the pointer , while the battery merely mounts to the base of a slingshot that ’s used for launching the missile here . When the two meet as the catapult ’s flexible is drawn back , the steel wool ignites and then burn as the arrow soar up through the melodic line .
The technique should form just as well with a bow or crossbow , but only if you ’ve get access to a orotund field or somewhere safe . In other words , hear this experiment in your parent ’s cellar is a terrible , unspeakable mind .

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