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 mini single knife switch allows for a circuit to be live or to be turned off. Simply connect the ends of the circuit to the metal screw contacts on the switch and instantly you have a mechanical way of breaking and connecting a circuit.
This science kit is an essential introduction to physics knowledge!
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
Get one of the craziest and coolest kaleidoscopes around!
Make the coolest 3D pin art on your desk with this amazing desk toy.
This caffeine molecule mug makes an excellent gift!
Build a robot that's an artist too!
At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.