Physicists from Southeast University in Nanjing, China have created a black hole for light that can fit in your coat pocket. Their device, which measures just 22 centimeters across, can suck up microwave light and convert it into heat. The hole is the latest clever device to use “metamaterials”, specially engineered materials that can bend light in unusual ways. Previously, scientists have used such metamaterials to build “invisibility carpets” and super-clear lenses.  

[Source: nature.com]