This MuscleWire® demo spring consists of a small shape-memory alloy actuator wire (SMA wire) wound into a coil. The coil allows you to show how SMA wires work--the coil is very bendable at cooler temperatures, but returns to its original shape when it is warmed up. The coil comes with an info card explaining how to use it.
Discover how solar cells make electricity with this awesome kit!
This kit will get your paper plane ready for takeoff!
Cool new Pi tee featuring ultra soft and light blue 100% cotton shirt.
This toy combines the wonders of Sea Monkeys and glow-in-the-dark fun, all in one!
Defy gravity with this cool balancing eagle!
Make the coolest 3D pin art on your desk with this amazing desk toy.