We help older brothers older sisters help Imagine that you are in another world. This world is very similar to ours, but he has his own laws, which you still do not know anything about. You wake up at home in your bed, but under a pillow, instead of a mobile phone, find an ammeter. You studied the ammeter device at school and roughly imagine how it works, but what the hell is it to you when you need to call or find out the time?