Build Your Own® Telegraph System! Wind coil, connect wires and learn to operate and communicate with this system. Have your students take an interdisciplinary journey into the world of telecommunications. Your students will discover the history of the telegraph, the science of magnetism and electrical circuits as well as the technology of sending data over wires.
Experiments include: magnetize a nail using a rare earth magnet, build an electromagnet, levitate ceramic magnets, investigate circuits, and construct a working telegraph sender and receiver.
Each kit includes materials, instructions and  carbon batteries. Kit requires assembly.