In the past, researchers have only been able to “cloak” microscopic objects using extremely complicated physics and so-called meta-materials made on a tiny scale.
But a new study at the University of Birmingham in the UK has taken a major step forward by making a paper clip invisible an object thousands of times bigger than in previous experiments.
The research works by using a naturally forming crystal called calcite which has extraordinary light-bending abilities.
What’s not entirely clear to me, so to speak, is whether you have to have a crystal exactly the right size at exactly the right angle. The laws of physics will take some bending, but breaking them, I suspect, will require some serious quantum activity. Not that there’s anything wrong with that.
(Technically not crossposted from here.)