Bob Pflugfelder
Bob Pflugfelder's most popular book is Nick and Tesla's High-Voltage Danger Lab: A Mystery with Electromagnets, Burglar Alarms, and Other Gadgets You Can Build Yourself with 5 saves and an average rating of 4.
Bob Pflugfelder's most popular book is Nick and Tesla's High-Voltage Danger Lab: A Mystery with Electromagnets, Burglar Alarms, and Other Gadgets You Can Build Yourself with 5 saves and an average rating of 4.