Build a sleek, modern (and adorable!) walking robot powered by salt water and magnesium — no batteries required!
Discover how a metal-air electrochemical cell stores and discharges electrical energy using a simple saltwater solution. Explore the science of electricity, currents, and electric potential. An innovative pump mechanism provides a steady drip of salt water onto the magnesium plates and the robot walks for up to one hour on just one drop of salt water! The “fuel” bottle is easy to clean, refill, and reuse for hours of exploration.
A full-color manual includes step-by-step assembly instructions and delves into how this green technology offers a truly safe, non-toxic, long-lasting, and renewable source of energy.
Ages: 8+
Experiments: 1
Piece Count: 62
Manual Pages: 28
Product Dimensions: 8.8 x 11 x 2.6 in.
Product Weight: 0.7 lbs
Manual Dimensions: 5.5 x 8.3 in.
Batteries Required: N/A
Country of Origin: Taiwan
Year Released: 2025
For all orders exceeding a value of 100USD shipping is offered for free.
Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.
Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.