Uploaded June 2014 | Updated September 2026, 3 weeks ago

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A nitinol wire/shape memory alloy inchworm that walks across a table using only heat. The heat is provided by electrical current heating up the thin nitinol wire, causing it to return to its remembered shape, a compressed coil in this case. A V-shaped spring returns it to the starting shape.

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See also:

How to Make Nitinol Wire Inchworm (Shape Memory Alloy)
youtube.com/watch?v=getfzfZJjHM

Nitinol Wire - How to Use it
youtube.com/watch?v=4Yi4epJ83EE

How a Rocket Works/Earth to Space Eg SpaceX Falcon 9 and Dragon
youtube.com/watch?v=L0AMQ6kRNMA

My webpage about this nitinol wire inchworm:
rimstar.org/science_electronics_projects/nitinol_wire_inchworm_shape_memory_alloy_homemade.htm

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The inspiration came from this one:
youtube.com/watch?v=DW4WaTmoZ3c

Essence - music by audionautix.com