High-tech cloaking machines could render small objects invisible and perhaps improve military stealth technology.

This week in California, Berkeley scientists claimed they've come a step closer to developing materials that could make people or objects invisible.

Mr Ergin's cloak was designed to make objects invisible to infrared light, but it paves the way for more advanced materials capable of cloaking objects in visible wavelengths.

Cloaking may not be just for Harry Potter. Scientists have made an object invisible. Not to the human eye, just invisible to some kinds of electromagnetic radiation.