This is a teaser We all know we can PUSH things around..... But can we PULL things at all ?? Certainly the English Language has the word pull WOW...... Unfortunately for any act of PULL, the puller needs to become ONE WITH the object being pulled... some type of secure attachment must be made... eg fingers behind the door knob. And in medicine, when muscles pull, actually the muscle myofibrils are PUSHING against each other. There is no mechanism where pull can transmit a force.... let alone gravity propagation