How to talk to a 9yo girl about rocket engine designs
Emilydoesn’tseemtolikeengineeringmuch,butshe’scertainlysmart.Today,Idiscussedwithheraboutthebasicsofrocketenginedesigns,andshecorrectlyfiguredoutthefollowingsonherown:1.Twotanks,oneforfueloneforliquid