<p class="p0"><span>Is&nbsp;that&nbsp;true?&nbsp;Tell&nbsp;me&nbsp;why,&nbsp;why,&nbsp;why!</span></p> <p class="p0"><span><span>British science communicator Andy Elliott demonstrates the unique properties of a paperclip made from nitinol (nickel titanium). The "magic trick" with nitinol is actually based on changing temperature, which makes it very useful in the medical field.</span></span></p>