hey, is it possible to just ask the question in your head,and get an accurate answear ? or do you have to ask it out loud... because i made this other pendulum using this string and a key...and well when i asked it a question in my head.. it seemed to do what i asked.. and my arm was on a table and i was sure and am sure that i didnt move my hand or arm, I asked in my head to show me a yes..and to show me a no..and well it did it.. any thoughts on this ?