Engineers invent invisibility

You’ve just got to read the fine print before going any further.

There’s an article in Nature magazine that talks about how they did it. The caveats are many: it only works for one frequency of light (multi-frequency daylight is no good); the size of the object matters; and the whole thing needs to calibrated for every object. Looks like Harry Potter’s going to have to go back to that blanket of his.