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.
You don’t think recycling is cool? Get a look at this, we’re sure you’ll change your mind!
Use this laser pointer for any professional presentation!
Every kid needs one of these spheres!
The Y-Ball Magnetic Puzzle is the perfect creativity tool for innovators, artists, engineers, writers, students, and you!
This microscope is so versatile you can even take it with you on a job site!
This chemistry learning and experiment kit comes with components and chemicals for over 75 amazing experiments!