>> 2. Hang in "empty space". Magically add planet close >> enough to apply a 1m/s/s acceleration field. No meter >> reading. >> The above reflect what you would see. > If the "hanging" is preventing the accelerometer from > physically moving > with respect to the "magicaly appearing" planet, why would > you see no > reading? If it did it wouldn't :-). The "hang" was intended in the identical sense to the identical usage in the prior paragraph. For better sense replace "Hang" with eg "Exist" or "Be located" or "Starting". Russell -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist