This small and affordable DC crank generator features a 5V USB connection port and can be used to charge and power a wide variety of electronic devices. Just pull the hand crank out and spin it; a red LED next to the connection port will let you know that you're generating power. The unit also includes a wrist strap to prevent breakages. Bring it camping, or have one around the house handy in case of emergencies or power outtages.
Plug your Android phone and tablet or your Apple phone and iPad using your existing USB charging cable or use an included USB to 5.5x2.1 mm DC power cable to power your other devices or science project circuits.
This project book and sample kit introduces you to shape-memory alloy technology!
Great tarantula specimen for the science classroom!
This kit allows to build up to 3 different robots!
The Star-Ball Magnetic Puzzle is the perfect creativity tool for innovators, artists, writers, students, and you!
The Hoberman Sphere expands and contracts with a magical motion so fluid and simple that kids can't help but play with it for hours.
Find the hidden crystals when you open your own geodes from this fun set.