BackyardBallistics

ThisbestsellingDIYhandbooknowfeaturesnewandexpandedprojects,enablingordinaryfolkstoconstruct16awesomeballisticdevicesintheirgarageorbasementworkshopsusinginexpensivehouseholdorhardwarestorematerialsandthisstep-by-stepguide.Clearinstructions,diagrams,andphotographsshowhowtobuildprojectsrangingfromthesimplematch-poweredrockettothemorecomplextabletopcatapultandtheoffbeatCincinnatifirekite.Theclassicpotatocannonhasaneweviltwin—thepiezo-electricspudgunandtheelectromagneticpipegunhasjoinedthecompanyofsuchfavoritesasthetennisballmortar.Withastrongemphasisonsafety,thebookalsogivestipsontroubleshooting,explainsthephysicsbehindtheprojects,andprofilesscientistsandextraordinaryexperimenterssuchasAlfredNobel,RobertGoddard,andIsaacNewton.Thisbookwillbeindispensableforthelegionsofbackyardtoy-rocketlaunchersandfireworksfanaticswhowisheverydaywasthefourthofJuly.