An example of metaphor in scientific writing:
"Inferential power is the last formal trait to be considered here: it is the capacity formulae have of giving rise to further formulae – with the assistance of a logical or mathematical forceps."
Mario Bunge
Bunge, M. (2017/1998). Philosophy of Science. Volume 1: From problem to theory. Routledge.
(I assume the reference here is not to the pliers used in general surergy, but the particular type of birthing forceps sometimes used to guide the baby's head during assisted delivery for a difficult birth.)
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Many examples of science metaphors are listed in 'Creative comparisons: Making science familiar through language. An illustrative catalogue of figurative comparisons and analogies for science concepts'. Free Download.