More Trivia
1. Many people have survived being struck by lightening. Some of them several times. Very high VOLTAGES are not necessarily fatal.
2. Grazing cattle are often killed by nearby - not direct - lightening strikes because of the steep voltage gradient in the earth between their front and rear feet. Moral : if caught out in a storm keep your feet close together.
3. Electric chairs used for killing people in certain barbaric cultures use DC.
4. Long undersea cables used to interconnect electricity grids in different countries eg France and UK use DC.