Knife switches are most closely associated with horror films set in the 1800s, especially in underground laboratories such as the one depicted in Mary Shelley’s novel Frankenstein. This double knife-double throw switch allows for up to two circuits to be live or to be turned off. Simply connect the ends of the circuit to the two metal screw contacts on the switch and instantly you have mechanical way of breaking and connecting a circuit.
See the solar system in action!
Build your own 10 inch kaleidoscope with this great kit!
Use this kit to introduce electromagnetic principles in the classroom setting!
Learn about hydrogen fuel cells with this incredible kit!
Check out this high-quality gyroscope!
This kit focuses on teaching children about electricity and how electronic devices work!
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