The French scientist Louis Pasteur famously said: "In the fields of observation chance favors only the prepared mind.Sunday morning BBC Radio - Zeinab Badawi's program on ignorance.
If you've done an experiment and it proves your hypothesis, you've made a measurement. If it disproves your hypothesis, you've made a discovery! Enrico someone.
Very interesting program but sadly, they don't delineate data -> information -> knowledge.