The following appliances are likely to require a Pure Sine wave Inverter to function correctly; Medical Equipment, battery chargers, light dimmers, Variable Speed Motors, Laser printers, sensitive audio/visual equipment and digital clocks. Some power tools may be a problem if they have a warning label stating that dangerous voltages are present at the battery terminals when charging. More.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.