For more than a century, wireless power sounded like a party trick from the age of coils and crackling sparks. Now it is quietly turning into infrastructure, with real systems moving electricity ...

NTT Inc. and Mitsubishi Heavy Industries Ltd. (MHI) conducted an optical wireless power transmission experiment using a laser beam to wirelessly transmit energy over a distance of one kilometer. By ...

The US military has just achieved a technological breakthrough in wireless power transmission. A laser carried over 800 watts across an impressive distance of 5.3 miles (8.6 kilometers). This ...

Wireless power transmission is fantastic in theory -- but in practice, due to some pesky laws of physics, the range of transmission is extremely limited. Yes, you can now charge your phone by putting ...