The 10 projects in this book use parts from multiple LEGO sets, including the LEGO MINDSTORMS EV3 set, to recreate highly technical inventions and explore science concepts along the way. Projects include a motion-activated camera for spying on wild animals, a tool that measures the latitude and tilt of the earth, a skywatching tool to observe satellites, and more. Readers learn how to combine LEGO parts with other components, sometimes breaking the LEGO "rules" by altering pieces with power tools, to create entirely new parts for experiments.