Scientists from the Massachusetts Institute of Technology have demonstrated a wireless power system that can charge electronic devices without the need for cables.
Soljacic explained that he got the idea after becoming frustrated at his mobile phone running out of power.
The scientist tried to determine whether any of the physics principles he knew of could turn into new ways of transmitting energy.
Wireless power is not a new idea, and physicists have long known that radio and light both carry power.
But development of working systems has always proved difficult because the power could not be focused at any one point and can be hazardous to life in locations where power is increased, as seen with radar stations.
The MIT team used a special class of 'non-radiative' materials that can store wireless power.
Such materials focus electromagnetic waves on a specific frequency so that power transfer is possible without stray radiation.
The MIT team estimates that the system will have a range of three to six metres and see it being useful in industrial and home applications.
IBM hopes that its new tool will avoid bias in artificial intelligence
Found by calculating the strength of the material deep inside the crust of neutron stars
Can highlight in real-time the relevant regions of an image being described
Double legal trouble for Musk as he also faces civil lawsuit over renewed British pot-holer 'paedo' claims