Originally Posted by atlasspeaks

there is a metal card in south korea that almost no one knows about. it's actually liquid metal (of apple computer fame) which is technically an amorphous metallic glass and not a true metal but we have cards here made out of it.

i personally own two of them. one of the hardest metals in existence yet bends with an elastic modulus similar to human bone that lets it keep its shape without deforming. fascinating stuff.