It is known to all persons who are conversant in experimental philosophy, that there are many little attentions and precautions necessary to be observed in the conducting of experiments, which cannot well be described in words, but which it is… — Joseph Priestley Copy Share Image
My job in space will be to observe and write a journal. I am also going to be teaching a class for students on earth about life in space and on the space shuttle and conducting experiments. — Christa McAuliffe Copy Share Image
