Harry Potter doesn’t need science when he has magic cloaks. Researchers, however, need Metamaterials – mixtures of metal and circuit board materials such as ceramic, Teflon or fiber composite – to bend visible light around objects avoiding the reflections or shadows, making them essentially invisible. (MSNBC reports on this scientific advancement)
Herm, I’ve read about this. Hopefully, humanity will be morally ready for the Invisibility Cloak once they’ve made one.