An experiment disproving a prediction is discovery.
When asked what he meant by a miracle: Oh, anything with a probability of less than 20%.
The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.
Never underestimate the joy people derive from hearing something they already know.
I hope it won't take long.
Experimental confirmation of a prediction is merely a measurement. An experiment disproving a prediction is a discovery.