A team of scientists at the MIT Research Institute has discovered a number of methods that can convert solar energy into electricity more efficiently than before.
Once upon a time, incandescent bulbs were no longer used in everyday life, on the grounds that they were extremely wasteful of electricity.
New way to filter light: For the first time, it can provide a selective way of direct light waves.
In the future, the transmission of electrical power to electrical equipment will not require wiring, which is considered to be relatively safe for human beings.
The era of plugs and wires may end soon because mobile phones, televisions and other devices can charge without wires, scientists say.