Tony's Magic Wire: Nitinol Paperclip | The Paperclip That Remembers its Shape! | Classic Magic Trick

… a cool way to test nitinol’s properties!

I was expecting this to, I don't know, need to be boiled to return to its shape? Nope. It snaps back so fast into its paper clip shape that it's a bit startling. Doesn't have to be hot water you dip it in either. I dipped it in hot pot broth at the restaurant and it worked there too. A fun, fiddly science-y thing that doesn't disappoint.

I own a lot of various Nitinol products and this one just doesn't work right. It claims that its memory shape is at 60C (a paper clip), but this is just not true. I had to heat it to over 85C to get it to reset, and event then it NEVER went back to its original paper-clip shape. As I say, I own a lot of other Nitinol products, but this one seems to be poorly designed / manufactured.

The metal is too soft and even in hot water it does not return to its original shape.