Platform 9 and 3/4!

Nature Physics published a news article this week on the fascinating subject of metamaterials. These materials are novel in that the have a negative refractive index or the bend light the "wrong" way. Two groups of researchers speculate on how these materials could be used to make hidden doorways not unlike the magical platform 9 3/4 from the Harry Potter story. While it will still be some time before we have a real chance at creating a hidden doorway large enough for a person to walk through the possibility is enthralling.

Link to Nature Physics article