MIT physicists are working on a new technology that could make it possible to transfer energy to your gadgets wirelessly, making AC adapters a thing of the past. The teamâ€â„¢s system uses âہresonance,â€Â which causes objects to vibrate when specific frequencies are applied.
“When you have two resonant objects of the same frequency they tend to couple very strongly,” Professor Soljacic told the BBC News website.
Resonance can be seen in musical instruments for example.
“When you play a tune on one, then another instrument with the same acoustic resonance will pick up that tune, it will visibly vibrate,” he said.
Instead of using acoustic vibrations, the team’s system exploits the resonance of electromagnetic waves. Electromagnetic radiation includes radio waves, infrared and x-rays.
The system could allow gadgets to be charged automatically by being within a few meters of a base station.
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