- #1
sshai45
- 86
- 1
In stories regarding the "Roswell UFO crash", there are claims of alien metal foil that (depending on who you ask! :) ) you couldn't cut with a knife, couldn't tear it by hand, and which you could crumple up, and when released from your hand, it would unfold again to a nice, smooth sheet.
Now, disregarding the dubious provenance of these "UFO" claims, is it at all physically possible to create a real material with these properties, and if not, why not? I notice that there are "shape memory alloy" or "memory metals" which are somewhat similar in that they can return to their original shape after significant distortion, but it looks like they require an external heat source to 'uncrumple'.
Now, disregarding the dubious provenance of these "UFO" claims, is it at all physically possible to create a real material with these properties, and if not, why not? I notice that there are "shape memory alloy" or "memory metals" which are somewhat similar in that they can return to their original shape after significant distortion, but it looks like they require an external heat source to 'uncrumple'.