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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.
Shipping Rates
Standard shipping rates to destinations in the continental USA are as follows:
$0 - $25 $7.99
$25 - $50 $9.99
$50 + $12.99
Oversize or additional shipping charges may apply to some items due to their size and weight, regardless of the purchase amount. Customers will be advised shipping costs for orders going outside the continental USA for customer approval.
Shipping Methods
STANDARD SERVICE: All items ship from our Southampton, NY location within 1-2 business days. Orders with Standard service will be shipped via USPS First Class, USPS Priority Mail, UPS Ground, UPS Surepost, or FedEx Home Delivery.
EXPEDITED SERVICE: Please call us for a quote if you wish to have your items shipped using an expedited shipping service such as UPS Two Day or Next Day..
Estimated Delivery Times
We will provide an ESTIMATED delivery timeframe at checkout based on the items in your order and your location. Some orders may arrive in multiple shipments.
Delivery timeframes are not guaranteed by any carrier, so please place time-sensitive orders in advance.
Items Lost or Damaged in Transit
Please contact us by email or calling in the event your shipment is lost or damaged. In the event of visible damage, please keep all packaging material. Stevenson’s will provide tracking numbers for all shipments and is not responsible for items not received that the tracking shows as having been delivered.
PICK-UP
We offer pick-up at both our Southampton store and our East Hampton store. Please indicate at checkout where you would like to pick up your item(s) or call us at 631-283-2111.
International Orders
At this time we are unable to ship international orders.