J Johan New member Jul 11, 2010 #1 ...around the room by wind/air curren? i was ask to make a experimental design about how can we be sure that particles of perfume move on their own rather than being carried around the room by wind or air currents
...around the room by wind/air curren? i was ask to make a experimental design about how can we be sure that particles of perfume move on their own rather than being carried around the room by wind or air currents
