O'Reilly Make: Technology on Your Time Volume 20 176pages software manual

Make: Technology on Your Time Volume 20 Get ready for the coolest issue of MAKE. Our special kids issue is filled with exciting and fun projects to make your weekend or science fair a blast. Hydrogen rockets, catapults, electric animals, chemical batteries, flying bird automatons, and more await you in the pages of MAKE: Volume 20!

MAKE continues to be a leader in the tech DIY movement due to its uncanny instinct to engage the curiosity, vitality, and passion of the growing community of Makers -- DIY enthusiasts, hobbyist engineers/designers, and others who like to tweak, disassemble, recreate, and invent cool new uses for technology in amazing projects they undertake in their backyards, basements, and garages.