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 chemistry learning and experiment kit comes with components and chemicals for over 75 amazing experiments!
This glass Erlenmeyer mug makes an excellent gift!
This caffeine molecule mug makes an excellent gift!
Learn how solar cells transform light into electrical energy with this great kit!
Get swept away by this fantastic robot kit that uses vibrations to move!
This advanced physics kit is perfect for older children already versed in physics knowledge!
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.