Give an example of how further hypotheses are derived in this procedure.

If I suspect Heron's machine under the temple, I can test, for example, instead of the fire, whether the doors can also be opened with another form of heat. I could pump hot steam into the fireplace, which would have the same effect as the fire. If the doors did not open in this way, I would know that a mechanism other than Heron's machine must be in the black box. If, on the other hand, the doors would also open under steam, this would not be proof of the existence of exactly this machine. It would only be a failed attempt at refutation. This is expressed in K. Popper's principle of falsification.