Andy Elliott is the man and mind behind Mist8k, a popular YouTube channel that features a number of DIY and science-related videos. Among his most popular videos is one that features a paperclip made out of nitinol. Nitinol, or nickel titanium, can "remember its original shape," according to Chemistry Learner, and so after it's been bent and contorted, you can drop it in hot water and it will return to its original form.

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In Elliott's video, he explains the process a bit as he demonstrates how nitinol works. Once the metal reaches a particular temperature, the atoms are "locked" into the position of their initial formation. Elliott takes what appears to be a regular paperclip, bends it out of shape, and then drops it into a cup of hot water. Watch as the mysterious metal returns to its original shape in just a few seconds.