PhysicsThe invisibility cloak inventor now has better tricks up his sleeve John Pendry is known for creating an invisibility cloak. Twenty years on, he has used the same principles to fashion an even more powerful kind of metamaterial that can teach us about the wild frontiers of physics Features
PhysicsTemperature gets a new definition using a quantum device A device that relies on quantum effects and oversized atoms may be a more reliable way to measure temperature that doesn't require calibration News