21.   Important sales in electrical energy are also likely to move forward.

22.   Inside the bat is a piezoceramic damper that takes the vibrations created by off-center hits and turns them into electrical energy.

23.   Inside this tube, the photons are converted into electrical energy.

24.   It discharges electrical energy in the atmosphere.

25.   It has also become home to the worst electrical energy shortage in the country.

26.   Nanotube actuators might be built in to convert electrical energy to mechanical energy in extraordinarily subtle ways.

27.   Piezoelectric materials convert mechanical impulses to electrical energy, and vice versa.

28.   Photovoltaic cells on the top of the lights convert solar energy to electrical energy, which is then stored in rechargeable batteries in the fixture itself.

29.   Rather than converting the mechanical energy to electrical energy and dispersing it, the piezoceramic plate converts the electrical signal back to mechanical energy.