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.
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Shipping details
Estimated ship dimensions: 2.6 inches length x 8.8 inches width x 11 inches height
Estimated ship weight: 0.8 pounds
item ships from third party seller: Thames & Kosmos
Return details
This item can be returned to any Target store or Target.com.
This item must be returned within 30 days of the date it was purchased in store, delivered to the guest, delivered by a Shipt shopper, or picked up by the guest.