Ready, Aim, Launch!
Make your Own Small LauncherseBook - 2017
Make a battery of mini-launchers designed to fling small objects safely. Then take aim and launch! Make several and use them on your own medieval battlefield, and learn some history along the way.
Publisher: [United States] : Lerner Publishing Group : Made available through hoopla, 2017.
Branch Call Number: eBook hoopla
Characteristics: 1 online resource