Turn simple stuff into cool contraptions: About building things: Project 1: Rocket-propelled toy car: Power up a speedway demon
Project 2: Gravity man!: Balancing on the high wire
Project 3: Heartbeat monitor: Make a working stethoscope
Project 4: Constellation maker: See the night sky from your bed
Project 5: See-safe solar viewer: Watch eclipses, sun spots, solar flares!
Project 6: Automatic cat/dog feeder: Let your pet feed itself
Project 7: Auto-fill water dish: Pets, like people, need water too
Project 8: Giant-pumpkin grower: Grow pumpkins bigger than you are!
Project 9: Snowball launcher: Throw farther and save your arm
Project 10: Super-duper water shooter: All ready for summertime fun
Project 11: Drinking-straw dispenser: Quick! Grab one for that tall, cooling drink
Project 12: Hidden compartment display case: Show off stuff, and hide other stuff
Project 13: Solar-powered pocket watch: Batteries not needed
Project 14: Mobile thunderstorm detector: Put an AM radio to work
Project 15: Sidewinder thingamajig: Check remote controls...and play tricks
Project 16: Magical electricity sensor: Electromagnets and more...
Project 17: Morse code telegraph: Dots and dashes for secret messages
Project 18: Secret drawer lock: Safe place for your secret stuff
Project 19: Build-it robot: You're in control
Project 20: Brain-powered robot: Making of a moth-bot!
