Energy harvesting that are able to operate in higher temperature gradients, and that can conduct electricity well without also conducting heat (something that was until recently thought impossible ), will result in increased efficiency. Future work in thermoelectrics could be to convert wasted heat, such as in automobile engine combustion, into electricity. This type of harvesting is based on the changing capacitance of vibration-dependent capacitors. Vibrations separate the plates of a charged variable capacitor, and mechanical energy is converted into electrical energy. Electrostatic energy harvesters need a polarization source to work and to convert mechanical energy from vibrations into electricity. The polarization
Song Instead of a Kiss it to Robert Plant to see if he could duet with her on the song, a move she was furious about. Alannah has cited that it is one of her favourite songs from her catalogue. The song was chosen as the lead single from the "Rockinghorse" album. While Alannah liked the song and found it single-worthy, she was adamant about releasing the uptempo rocker "Our World, Our Times" instead of a ballad as the first single, but was overruled by the record company because they feared the political lyrics of that song would hurt its airplay and chart performance. The