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 magic bird defies gravity before your very eyes!
Watch this laser pointer emit a cool purple beam!
This simple but amusing magnetic toy will keep you busy for hours!
Get one of the craziest and coolest kaleidoscopes around!
This 10 inch realistic model has removable organs that can be studied and set back into the correct position!
This kit allows to build up to 3 different robots!